wp_post_preview_js()
Outputs a small JS snippet on preview tabs/windows to remove window.name on unload.
Description
This prevents reusing the same tab for a preview when the user has navigated away.
Source
File: wp-includes/functions.php
function wp_post_preview_js() {
global $post;
if ( ! is_preview() || empty( $post ) ) {
return;
}
// Has to match the window name used in post_submit_meta_box()
$name = 'wp-preview-' . (int) $post->ID;
?>
<script>
( function() {
var query = document.location.search;
if ( query && query.indexOf( 'preview=true' ) !== -1 ) {
window.name = '<?php echo $name; ?>';
}
if ( window.addEventListener ) {
window.addEventListener( 'unload', function() { window.name = ''; }, false );
}
}());
</script>
<?php
}
Changelog
| Version | Description |
|---|---|
| WP-4.3.0 | Introduced. |