_default_wp_die_handler

The timeline below displays how wordpress function _default_wp_die_handler has changed across different WordPress versions. If a version is not listed, refer to the next available version below.

WordPress Version: 6.5

/**
 * Kills WordPress execution and displays HTML page with an error message.
 *
 * This is the default handler for wp_die(). If you want a custom one,
 * you can override this using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty string.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $parsed_args) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($parsed_args['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($parsed_args['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . implode("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        }
        $message = sprintf('<div class="wp-die-message">%s</div>', $message);
    }
    $have_gettext = function_exists('__');
    if (!empty($parsed_args['link_url']) && !empty($parsed_args['link_text'])) {
        $link_url = $parsed_args['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $parsed_args['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($parsed_args['back_link']) && $parsed_args['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            header("Content-Type: text/html; charset={$parsed_args['charset']}");
            status_header($parsed_args['response']);
            nocache_headers();
        }
        $text_direction = $parsed_args['text_direction'];
        $dir_attr = "dir='{$text_direction}'";
        /*
         * If `text_direction` was not explicitly passed,
         * use get_language_attributes() if available.
         */
        if (empty($args['text_direction']) && function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        }
        ?>
<!DOCTYPE html>
<html <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=<?php 
        echo $parsed_args['charset'];
        ?>" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_robots') && function_exists('wp_robots_no_robots') && function_exists('add_filter')) {
            add_filter('wp_robots', 'wp_robots_no_robots');
            wp_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			border: 1px solid #ccd0d4;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .04);
			box-shadow: 0 1px 1px rgba(0, 0, 0, .04);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p,
		#error-page .wp-die-message {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #2271b1;
		}
		a:hover,
		a:active {
			color: #135e96;
		}
		a:focus {
			color: #043959;
			box-shadow: 0 0 0 2px #2271b1;
			outline: 2px solid transparent;
		}
		.button {
			background: #f3f5f6;
			border: 1px solid #016087;
			color: #016087;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 2;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			vertical-align: top;
		}

		.button.button-large {
			line-height: 2.30769231;
			min-height: 32px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #f1f1f1;
		}

		.button:focus {
			background: #f3f5f6;
			border-color: #007cba;
			-webkit-box-shadow: 0 0 0 1px #007cba;
			box-shadow: 0 0 0 1px #007cba;
			color: #016087;
			outline: 2px solid transparent;
			outline-offset: 0;
		}

		.button:active {
			background: #f3f5f6;
			border-color: #7e8993;
			-webkit-box-shadow: none;
			box-shadow: none;
		}

		<?php 
        if ('rtl' === $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($parsed_args['exit']) {
        die;
    }
}

WordPress Version: 6.3

/**
 * Kills WordPress execution and displays HTML page with an error message.
 *
 * This is the default handler for wp_die(). If you want a custom one,
 * you can override this using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty string.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $parsed_args) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($parsed_args['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($parsed_args['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . implode("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        }
        $message = sprintf('<div class="wp-die-message">%s</div>', $message);
    }
    $have_gettext = function_exists('__');
    if (!empty($parsed_args['link_url']) && !empty($parsed_args['link_text'])) {
        $link_url = $parsed_args['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $parsed_args['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($parsed_args['back_link']) && $parsed_args['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            header("Content-Type: text/html; charset={$parsed_args['charset']}");
            status_header($parsed_args['response']);
            nocache_headers();
        }
        $text_direction = $parsed_args['text_direction'];
        $dir_attr = "dir='{$text_direction}'";
        /*
         * If `text_direction` was not explicitly passed,
         * use get_language_attributes() if available.
         */
        if (empty($args['text_direction']) && function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        }
        ?>
<!DOCTYPE html>
<html <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=<?php 
        echo $parsed_args['charset'];
        ?>" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_robots') && function_exists('wp_robots_no_robots') && function_exists('add_filter')) {
            add_filter('wp_robots', 'wp_robots_no_robots');
            wp_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			border: 1px solid #ccd0d4;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .04);
			box-shadow: 0 1px 1px rgba(0, 0, 0, .04);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p,
		#error-page .wp-die-message {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #006799;
		}
		a:focus {
			color: #124964;
			-webkit-box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			outline: none;
		}
		.button {
			background: #f3f5f6;
			border: 1px solid #016087;
			color: #016087;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 2;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			vertical-align: top;
		}

		.button.button-large {
			line-height: 2.30769231;
			min-height: 32px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #f1f1f1;
		}

		.button:focus {
			background: #f3f5f6;
			border-color: #007cba;
			-webkit-box-shadow: 0 0 0 1px #007cba;
			box-shadow: 0 0 0 1px #007cba;
			color: #016087;
			outline: 2px solid transparent;
			outline-offset: 0;
		}

		.button:active {
			background: #f3f5f6;
			border-color: #7e8993;
			-webkit-box-shadow: none;
			box-shadow: none;
		}

		<?php 
        if ('rtl' === $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($parsed_args['exit']) {
        die;
    }
}

WordPress Version: 6.2

/**
 * Kills WordPress execution and displays HTML page with an error message.
 *
 * This is the default handler for wp_die(). If you want a custom one,
 * you can override this using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty string.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $parsed_args) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($parsed_args['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($parsed_args['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . implode("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        }
        $message = sprintf('<div class="wp-die-message">%s</div>', $message);
    }
    $have_gettext = function_exists('__');
    if (!empty($parsed_args['link_url']) && !empty($parsed_args['link_text'])) {
        $link_url = $parsed_args['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $parsed_args['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($parsed_args['back_link']) && $parsed_args['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            header("Content-Type: text/html; charset={$parsed_args['charset']}");
            status_header($parsed_args['response']);
            nocache_headers();
        }
        $text_direction = $parsed_args['text_direction'];
        $dir_attr = "dir='{$text_direction}'";
        // If `text_direction` was not explicitly passed,
        // use get_language_attributes() if available.
        if (empty($args['text_direction']) && function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        }
        ?>
<!DOCTYPE html>
<html <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=<?php 
        echo $parsed_args['charset'];
        ?>" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_robots') && function_exists('wp_robots_no_robots') && function_exists('add_filter')) {
            add_filter('wp_robots', 'wp_robots_no_robots');
            wp_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			border: 1px solid #ccd0d4;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .04);
			box-shadow: 0 1px 1px rgba(0, 0, 0, .04);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p,
		#error-page .wp-die-message {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #006799;
		}
		a:focus {
			color: #124964;
			-webkit-box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			outline: none;
		}
		.button {
			background: #f3f5f6;
			border: 1px solid #016087;
			color: #016087;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 2;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			vertical-align: top;
		}

		.button.button-large {
			line-height: 2.30769231;
			min-height: 32px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #f1f1f1;
		}

		.button:focus {
			background: #f3f5f6;
			border-color: #007cba;
			-webkit-box-shadow: 0 0 0 1px #007cba;
			box-shadow: 0 0 0 1px #007cba;
			color: #016087;
			outline: 2px solid transparent;
			outline-offset: 0;
		}

		.button:active {
			background: #f3f5f6;
			border-color: #7e8993;
			-webkit-box-shadow: none;
			box-shadow: none;
		}

		<?php 
        if ('rtl' === $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($parsed_args['exit']) {
        die;
    }
}

WordPress Version: 5.7

/**
 * Kills WordPress execution and displays HTML page with an error message.
 *
 * This is the default handler for wp_die(). If you want a custom one,
 * you can override this using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $parsed_args) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($parsed_args['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($parsed_args['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . implode("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        }
        $message = sprintf('<div class="wp-die-message">%s</div>', $message);
    }
    $have_gettext = function_exists('__');
    if (!empty($parsed_args['link_url']) && !empty($parsed_args['link_text'])) {
        $link_url = $parsed_args['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $parsed_args['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($parsed_args['back_link']) && $parsed_args['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            header("Content-Type: text/html; charset={$parsed_args['charset']}");
            status_header($parsed_args['response']);
            nocache_headers();
        }
        $text_direction = $parsed_args['text_direction'];
        $dir_attr = "dir='{$text_direction}'";
        // If `text_direction` was not explicitly passed,
        // use get_language_attributes() if available.
        if (empty($args['text_direction']) && function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        }
        ?>
<!DOCTYPE html>
<html <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=<?php 
        echo $parsed_args['charset'];
        ?>" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_robots') && function_exists('wp_robots_no_robots') && function_exists('add_filter')) {
            add_filter('wp_robots', 'wp_robots_no_robots');
            wp_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			border: 1px solid #ccd0d4;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, .04);
			box-shadow: 0 1px 1px rgba(0, 0, 0, .04);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p,
		#error-page .wp-die-message {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #006799;
		}
		a:focus {
			color: #124964;
			-webkit-box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			outline: none;
		}
		.button {
			background: #f3f5f6;
			border: 1px solid #016087;
			color: #016087;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 2;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			vertical-align: top;
		}

		.button.button-large {
			line-height: 2.30769231;
			min-height: 32px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #f1f1f1;
		}

		.button:focus {
			background: #f3f5f6;
			border-color: #007cba;
			-webkit-box-shadow: 0 0 0 1px #007cba;
			box-shadow: 0 0 0 1px #007cba;
			color: #016087;
			outline: 2px solid transparent;
			outline-offset: 0;
		}

		.button:active {
			background: #f3f5f6;
			border-color: #7e8993;
			-webkit-box-shadow: none;
			box-shadow: none;
		}

		<?php 
        if ('rtl' === $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($parsed_args['exit']) {
        die;
    }
}

WordPress Version: 5.6

/**
 * Kills WordPress execution and displays HTML page with an error message.
 *
 * This is the default handler for wp_die(). If you want a custom one,
 * you can override this using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $parsed_args) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($parsed_args['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($parsed_args['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . implode("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        }
        $message = sprintf('<div class="wp-die-message">%s</div>', $message);
    }
    $have_gettext = function_exists('__');
    if (!empty($parsed_args['link_url']) && !empty($parsed_args['link_text'])) {
        $link_url = $parsed_args['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $parsed_args['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($parsed_args['back_link']) && $parsed_args['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            header("Content-Type: text/html; charset={$parsed_args['charset']}");
            status_header($parsed_args['response']);
            nocache_headers();
        }
        $text_direction = $parsed_args['text_direction'];
        $dir_attr = "dir='{$text_direction}'";
        // If `text_direction` was not explicitly passed,
        // use get_language_attributes() if available.
        if (empty($args['text_direction']) && function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        }
        ?>
<!DOCTYPE html>
<html <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=<?php 
        echo $parsed_args['charset'];
        ?>" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_no_robots')) {
            wp_no_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.13);
			box-shadow: 0 1px 3px rgba(0, 0, 0, 0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p,
		#error-page .wp-die-message {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #006799;
		}
		a:focus {
			color: #124964;
			-webkit-box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 2;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
			vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 2.15384615;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba(0, 115, 170, 0.8);
			box-shadow: 0 0 3px rgba(0, 115, 170, 0.8);
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
			-webkit-box-shadow: inset 0 2px 5px -3px rgba(0, 0, 0, 0.5);
			box-shadow: inset 0 2px 5px -3px rgba(0, 0, 0, 0.5);
		}

		<?php 
        if ('rtl' === $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($parsed_args['exit']) {
        die;
    }
}

WordPress Version: 5.5

/**
 * Kills WordPress execution and displays HTML page with an error message.
 *
 * This is the default handler for wp_die(). If you want a custom one,
 * you can override this using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $parsed_args) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($parsed_args['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($parsed_args['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        }
        $message = sprintf('<div class="wp-die-message">%s</div>', $message);
    }
    $have_gettext = function_exists('__');
    if (!empty($parsed_args['link_url']) && !empty($parsed_args['link_text'])) {
        $link_url = $parsed_args['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $parsed_args['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($parsed_args['back_link']) && $parsed_args['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            header("Content-Type: text/html; charset={$parsed_args['charset']}");
            status_header($parsed_args['response']);
            nocache_headers();
        }
        $text_direction = $parsed_args['text_direction'];
        $dir_attr = "dir='{$text_direction}'";
        // If `text_direction` was not explicitly passed,
        // use get_language_attributes() if available.
        if (empty($args['text_direction']) && function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        }
        ?>
<!DOCTYPE html>
<html <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=<?php 
        echo $parsed_args['charset'];
        ?>" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_no_robots')) {
            wp_no_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.13);
			box-shadow: 0 1px 3px rgba(0, 0, 0, 0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p,
		#error-page .wp-die-message {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #006799;
		}
		a:focus {
			color: #124964;
			-webkit-box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 2;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
			vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 2.15384615;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba(0, 115, 170, 0.8);
			box-shadow: 0 0 3px rgba(0, 115, 170, 0.8);
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
			-webkit-box-shadow: inset 0 2px 5px -3px rgba(0, 0, 0, 0.5);
			box-shadow: inset 0 2px 5px -3px rgba(0, 0, 0, 0.5);
		}

		<?php 
        if ('rtl' === $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($parsed_args['exit']) {
        die;
    }
}

WordPress Version: 5.3

/**
 * Kills WordPress execution and displays HTML page with an error message.
 *
 * This is the default handler for wp_die(). If you want a custom one,
 * you can override this using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $parsed_args) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($parsed_args['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($parsed_args['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        }
        $message = sprintf('<div class="wp-die-message">%s</div>', $message);
    }
    $have_gettext = function_exists('__');
    if (!empty($parsed_args['link_url']) && !empty($parsed_args['link_text'])) {
        $link_url = $parsed_args['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $parsed_args['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($parsed_args['back_link']) && $parsed_args['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            header("Content-Type: text/html; charset={$parsed_args['charset']}");
            status_header($parsed_args['response']);
            nocache_headers();
        }
        $text_direction = $parsed_args['text_direction'];
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        } else {
            $dir_attr = "dir='{$text_direction}'";
        }
        ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=<?php 
        echo $parsed_args['charset'];
        ?>" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_no_robots')) {
            wp_no_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.13);
			box-shadow: 0 1px 3px rgba(0, 0, 0, 0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p,
		#error-page .wp-die-message {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #00a0d2;
		}
		a:focus {
			color: #124964;
			-webkit-box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 2;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
			vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 2.15384615;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba(0, 115, 170, 0.8);
			box-shadow: 0 0 3px rgba(0, 115, 170, 0.8);
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
			-webkit-box-shadow: inset 0 2px 5px -3px rgba(0, 0, 0, 0.5);
			box-shadow: inset 0 2px 5px -3px rgba(0, 0, 0, 0.5);
		}

		<?php 
        if ('rtl' == $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($parsed_args['exit']) {
        die;
    }
}

WordPress Version: 5.2

/**
 * Kills WordPress execution and displays HTML page with an error message.
 *
 * This is the default handler for wp_die(). If you want a custom one,
 * you can override this using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $r) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($r['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($r['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        } else {
            $message = "<p>{$message}</p>";
        }
    }
    $have_gettext = function_exists('__');
    if (!empty($r['link_url']) && !empty($r['link_text'])) {
        $link_url = $r['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $r['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            header('Content-Type: text/html; charset=utf-8');
            status_header($r['response']);
            nocache_headers();
        }
        $text_direction = $r['text_direction'];
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        } else {
            $dir_attr = "dir='{$text_direction}'";
        }
        ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_no_robots')) {
            wp_no_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.13);
			box-shadow: 0 1px 3px rgba(0, 0, 0, 0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #00a0d2;
		}
		a:focus {
			color: #124964;
			-webkit-box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, 0.8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
			 vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 28px;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba(0, 115, 170, 0.8);
			box-shadow: 0 0 3px rgba(0, 115, 170, 0.8);
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
			 -webkit-box-shadow: inset 0 2px 5px -3px rgba(0, 0, 0, 0.5);
			 box-shadow: inset 0 2px 5px -3px rgba(0, 0, 0, 0.5);
			 -webkit-transform: translateY(1px);
			 -ms-transform: translateY(1px);
			 transform: translateY(1px);
		}

		<?php 
        if ('rtl' == $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($r['exit']) {
        die;
    }
}

WordPress Version: 5.1

/**
 * Kills WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    list($message, $title, $r) = _wp_die_process_input($message, $title, $args);
    if (is_string($message)) {
        if (!empty($r['additional_errors'])) {
            $message = array_merge(array($message), wp_list_pluck($r['additional_errors'], 'message'));
            $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $message) . "</li>\n\t</ul>";
        } else {
            $message = "<p>{$message}</p>";
        }
    }
    $have_gettext = function_exists('__');
    if (!empty($r['link_url']) && !empty($r['link_text'])) {
        $link_url = $r['link_url'];
        if (function_exists('esc_url')) {
            $link_url = esc_url($link_url);
        }
        $link_text = $r['link_text'];
        $message .= "\n<p><a href='{$link_url}'>{$link_text}</a></p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        $text_direction = $r['text_direction'];
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            $dir_attr = get_language_attributes();
        } else {
            $dir_attr = "dir='{$text_direction}'";
        }
        ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        echo $dir_attr;
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="width=device-width">
		<?php 
        if (function_exists('wp_no_robots')) {
            wp_no_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #00a0d2;
		}
		a:focus {
			color: #124964;
			-webkit-box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
			box-shadow:
				0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
			 vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 28px;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus  {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
			 -webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
			 box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
			 -webkit-transform: translateY(1px);
			 -ms-transform: translateY(1px);
			 transform: translateY(1px);
		}

		<?php 
        if ('rtl' == $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
	<?php 
    if ($r['exit']) {
        die;
    }
}

WordPress Version: 4.9

/**
 * Kills WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="width=device-width">
	<?php 
        if (function_exists('wp_no_robots')) {
            wp_no_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #00a0d2;
		}
		a:focus {
			color: #124964;
		    -webkit-box-shadow:
		    	0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
		    box-shadow:
		    	0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
		 	vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 28px;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus  {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
		 	-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	-webkit-transform: translateY(1px);
		 	-ms-transform: translateY(1px);
		 	transform: translateY(1px);
		}

		<?php 
        if ('rtl' == $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}

WordPress Version: 4.7

/**
 * Kills WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string|WP_Error $message Error message or WP_Error object.
 * @param string          $title   Optional. Error title. Default empty.
 * @param string|array    $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
-->
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="width=device-width">
	<?php 
        if (function_exists('wp_no_robots')) {
            wp_no_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #00a0d2;
		}
		a:focus {
			color: #124964;
		    -webkit-box-shadow:
		    	0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
		    box-shadow:
		    	0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
		 	vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 28px;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus  {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
		 	-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	-webkit-transform: translateY(1px);
		 	-ms-transform: translateY(1px);
		 	transform: translateY(1px);
		}

		<?php 
        if ('rtl' == $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}

WordPress Version: 4.6

/**
 * Kills WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the {@see 'wp_die_handler'} filter in wp_die().
 *
 * @since 3.0.0
 * @access private
 *
 * @param string       $message Error message.
 * @param string       $title   Optional. Error title. Default empty.
 * @param string|array $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
-->
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="width=device-width">
	<?php 
        if (function_exists('wp_no_robots')) {
            wp_no_robots();
        }
        ?>
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font-size: 24px;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #00a0d2;
		}
		a:focus {
			color: #124964;
		    -webkit-box-shadow:
		    	0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
		    box-shadow:
		    	0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
		 	vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 28px;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus  {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
		 	-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	-webkit-transform: translateY(1px);
		 	-ms-transform: translateY(1px);
		 	transform: translateY(1px);
		}

		<?php 
        if ('rtl' == $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}

WordPress Version: 4.4

/**
 * Kill WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the wp_die_handler filter in wp_die
 *
 * @since 3.0.0
 * @access private
 *
 * @param string       $message Error message.
 * @param string       $title   Optional. Error title. Default empty.
 * @param string|array $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
-->
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="width=device-width">
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: "Open Sans", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font: 24px "Open Sans", sans-serif;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #0073aa;
		}
		a:hover,
		a:active {
			color: #00a0d2;
		}
		a:focus {
			color: #124964;
		    -webkit-box-shadow:
		    	0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
		    box-shadow:
		    	0 0 0 1px #5b9dd9,
				0 0 2px 1px rgba(30, 140, 190, .8);
			outline: none;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #ccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: 0 1px 0 #ccc;
			box-shadow: 0 1px 0 #ccc;
		 	vertical-align: top;
		}

		.button.button-large {
			height: 30px;
			line-height: 28px;
			padding: 0 12px 2px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #23282d;
		}

		.button:focus  {
			border-color: #5b9dd9;
			-webkit-box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			box-shadow: 0 0 3px rgba( 0, 115, 170, .8 );
			outline: none;
		}

		.button:active {
			background: #eee;
			border-color: #999;
		 	-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	-webkit-transform: translateY(1px);
		 	-ms-transform: translateY(1px);
		 	transform: translateY(1px);
		}

		<?php 
        if ('rtl' == $text_direction) {
            echo 'body { font-family: Tahoma, Arial; }';
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}

WordPress Version: 4.3

/**
 * Kill WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the wp_die_handler filter in wp_die
 *
 * @since 3.0.0
 * @access private
 *
 * @param string       $message Error message.
 * @param string       $title   Optional. Error title. Default empty.
 * @param string|array $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
-->
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<meta name="viewport" content="width=device-width">
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: "Open Sans", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font: 24px "Open Sans", sans-serif;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #21759B;
			text-decoration: none;
		}
		a:hover {
			color: #D54E21;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #cccccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
			box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
		 	vertical-align: top;
		}

		.button.button-large {
			height: 29px;
			line-height: 28px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #222;
		}

		.button:focus  {
			-webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2);
			box-shadow: 1px 1px 1px rgba(0,0,0,.2);
		}

		.button:active {
			background: #eee;
			border-color: #999;
			color: #333;
			-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		}

		<?php 
        if ('rtl' == $text_direction) {
            ?>
		body { font-family: Tahoma, Arial; }
		<?php 
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}

WordPress Version: 4.0

/**
 * Kill WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the wp_die_handler filter in wp_die
 *
 * @since 3.0.0
 * @access private
 *
 * @param string       $message Error message.
 * @param string       $title   Optional. Error title. Default empty.
 * @param string|array $args    Optional. Arguments to control behavior. Default empty array.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
-->
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: "Open Sans", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font: 24px "Open Sans", sans-serif;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #21759B;
			text-decoration: none;
		}
		a:hover {
			color: #D54E21;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #cccccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
			box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
		 	vertical-align: top;
		}

		.button.button-large {
			height: 29px;
			line-height: 28px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #222;
		}

		.button:focus  {
			-webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2);
			box-shadow: 1px 1px 1px rgba(0,0,0,.2);
		}

		.button:active {
			background: #eee;
			border-color: #999;
			color: #333;
			-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		}

		<?php 
        if ('rtl' == $text_direction) {
            ?>
		body { font-family: Tahoma, Arial; }
		<?php 
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}

WordPress Version: 3.9

/**
 * Kill WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the wp_die_handler filter in wp_die
 *
 * @since 3.0.0
 * @access private
 *
 * @param string $message Error message.
 * @param string $title Error title.
 * @param string|array $args Optional arguments to control behavior.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
-->
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f1f1f1;
		}
		body {
			background: #fff;
			color: #444;
			font-family: "Open Sans", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font: 24px "Open Sans", sans-serif;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #21759B;
			text-decoration: none;
		}
		a:hover {
			color: #D54E21;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #cccccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
			box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
		 	vertical-align: top;
		}

		.button.button-large {
			height: 29px;
			line-height: 28px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #222;
		}

		.button:focus  {
			-webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2);
			box-shadow: 1px 1px 1px rgba(0,0,0,.2);
		}

		.button:active {
			background: #eee;
			border-color: #999;
			color: #333;
			-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		}

		<?php 
        if ('rtl' == $text_direction) {
            ?>
		body { font-family: Tahoma, Arial; }
		<?php 
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}

WordPress Version: 3.8

/**
 * Kill WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the wp_die_handler filter in wp_die
 *
 * @since 3.0.0
 * @access private
 *
 * @param string $message Error message.
 * @param string $title Error title.
 * @param string|array $args Optional arguments to control behavior.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
-->
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #eee;
		}
		body {
			background: #fff;
			color: #333;
			font-family: "Open Sans", sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			max-width: 700px;
			-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
			box-shadow: 0 1px 3px rgba(0,0,0,0.13);
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font: 24px "Open Sans", sans-serif;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #21759B;
			text-decoration: none;
		}
		a:hover {
			color: #D54E21;
		}
		.button {
			background: #f7f7f7;
			border: 1px solid #cccccc;
			color: #555;
			display: inline-block;
			text-decoration: none;
			font-size: 13px;
			line-height: 26px;
			height: 28px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			-webkit-border-radius: 3px;
			-webkit-appearance: none;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;

			-webkit-box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
			box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
		 	vertical-align: top;
		}

		.button.button-large {
			height: 29px;
			line-height: 28px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #fafafa;
			border-color: #999;
			color: #222;
		}

		.button:focus  {
			-webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2);
			box-shadow: 1px 1px 1px rgba(0,0,0,.2);
		}

		.button:active {
			background: #eee;
			border-color: #999;
			color: #333;
			-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		}

		<?php 
        if ('rtl' == $text_direction) {
            ?>
		body { font-family: Tahoma, Arial; }
		<?php 
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}

WordPress Version: 3.7

/**
 * Kill WordPress execution and display HTML message with error message.
 *
 * This is the default handler for wp_die if you want a custom one for your
 * site then you can overload using the wp_die_handler filter in wp_die
 *
 * @since 3.0.0
 * @access private
 *
 * @param string $message Error message.
 * @param string $title Error title.
 * @param string|array $args Optional arguments to control behavior.
 */
function _default_wp_die_handler($message, $title = '', $args = array())
{
    $defaults = array('response' => 500);
    $r = wp_parse_args($args, $defaults);
    $have_gettext = function_exists('__');
    if (function_exists('is_wp_error') && is_wp_error($message)) {
        if (empty($title)) {
            $error_data = $message->get_error_data();
            if (is_array($error_data) && isset($error_data['title'])) {
                $title = $error_data['title'];
            }
        }
        $errors = $message->get_error_messages();
        switch (count($errors)) {
            case 0:
                $message = '';
                break;
            case 1:
                $message = "<p>{$errors[0]}</p>";
                break;
            default:
                $message = "<ul>\n\t\t<li>" . join("</li>\n\t\t<li>", $errors) . "</li>\n\t</ul>";
                break;
        }
    } elseif (is_string($message)) {
        $message = "<p>{$message}</p>";
    }
    if (isset($r['back_link']) && $r['back_link']) {
        $back_text = $have_gettext ? __('&laquo; Back') : '&laquo; Back';
        $message .= "\n<p><a href='javascript:history.back()'>{$back_text}</a></p>";
    }
    if (!did_action('admin_head')) {
        if (!headers_sent()) {
            status_header($r['response']);
            nocache_headers();
            header('Content-Type: text/html; charset=utf-8');
        }
        if (empty($title)) {
            $title = $have_gettext ? __('WordPress &rsaquo; Error') : 'WordPress &rsaquo; Error';
        }
        $text_direction = 'ltr';
        if (isset($r['text_direction']) && 'rtl' == $r['text_direction']) {
            $text_direction = 'rtl';
        } elseif (function_exists('is_rtl') && is_rtl()) {
            $text_direction = 'rtl';
        }
        ?>
<!DOCTYPE html>
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
-->
<html xmlns="http://www.w3.org/1999/xhtml" <?php 
        if (function_exists('language_attributes') && function_exists('is_rtl')) {
            language_attributes();
        } else {
            echo "dir='{$text_direction}'";
        }
        ?>>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title><?php 
        echo $title;
        ?></title>
	<style type="text/css">
		html {
			background: #f9f9f9;
		}
		body {
			background: #fff;
			color: #333;
			font-family: sans-serif;
			margin: 2em auto;
			padding: 1em 2em;
			-webkit-border-radius: 3px;
			border-radius: 3px;
			border: 1px solid #dfdfdf;
			max-width: 700px;
		}
		h1 {
			border-bottom: 1px solid #dadada;
			clear: both;
			color: #666;
			font: 24px Georgia, "Times New Roman", Times, serif;
			margin: 30px 0 0 0;
			padding: 0;
			padding-bottom: 7px;
		}
		#error-page {
			margin-top: 50px;
		}
		#error-page p {
			font-size: 14px;
			line-height: 1.5;
			margin: 25px 0 20px;
		}
		#error-page code {
			font-family: Consolas, Monaco, monospace;
		}
		ul li {
			margin-bottom: 10px;
			font-size: 14px ;
		}
		a {
			color: #21759B;
			text-decoration: none;
		}
		a:hover {
			color: #D54E21;
		}
		.button {
			display: inline-block;
			text-decoration: none;
			font-size: 14px;
			line-height: 23px;
			height: 24px;
			margin: 0;
			padding: 0 10px 1px;
			cursor: pointer;
			border-width: 1px;
			border-style: solid;
			-webkit-border-radius: 3px;
			border-radius: 3px;
			white-space: nowrap;
			-webkit-box-sizing: border-box;
			-moz-box-sizing:    border-box;
			box-sizing:         border-box;
			background: #f3f3f3;
			background-image: -webkit-gradient(linear, left top, left bottom, from(#fefefe), to(#f4f4f4));
			background-image: -webkit-linear-gradient(top, #fefefe, #f4f4f4);
			background-image:    -moz-linear-gradient(top, #fefefe, #f4f4f4);
			background-image:      -o-linear-gradient(top, #fefefe, #f4f4f4);
			background-image:   linear-gradient(to bottom, #fefefe, #f4f4f4);
			border-color: #bbb;
		 	color: #333;
			text-shadow: 0 1px 0 #fff;
		}

		.button.button-large {
			height: 29px;
			line-height: 28px;
			padding: 0 12px;
		}

		.button:hover,
		.button:focus {
			background: #f3f3f3;
			background-image: -webkit-gradient(linear, left top, left bottom, from(#fff), to(#f3f3f3));
			background-image: -webkit-linear-gradient(top, #fff, #f3f3f3);
			background-image:    -moz-linear-gradient(top, #fff, #f3f3f3);
			background-image:     -ms-linear-gradient(top, #fff, #f3f3f3);
			background-image:      -o-linear-gradient(top, #fff, #f3f3f3);
			background-image:   linear-gradient(to bottom, #fff, #f3f3f3);
			border-color: #999;
			color: #222;
		}

		.button:focus  {
			-webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2);
			box-shadow: 1px 1px 1px rgba(0,0,0,.2);
		}

		.button:active {
			outline: none;
			background: #eee;
			background-image: -webkit-gradient(linear, left top, left bottom, from(#f4f4f4), to(#fefefe));
			background-image: -webkit-linear-gradient(top, #f4f4f4, #fefefe);
			background-image:    -moz-linear-gradient(top, #f4f4f4, #fefefe);
			background-image:     -ms-linear-gradient(top, #f4f4f4, #fefefe);
			background-image:      -o-linear-gradient(top, #f4f4f4, #fefefe);
			background-image:   linear-gradient(to bottom, #f4f4f4, #fefefe);
			border-color: #999;
			color: #333;
			text-shadow: 0 -1px 0 #fff;
			-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
		}

		<?php 
        if ('rtl' == $text_direction) {
            ?>
		body { font-family: Tahoma, Arial; }
		<?php 
        }
        ?>
	</style>
</head>
<body id="error-page">
<?php 
    }
    // ! did_action( 'admin_head' ) 
    ?>
	<?php 
    echo $message;
    ?>
</body>
</html>
<?php 
    die;
}