Weston Ruter ede95a09bd Script Loader: Improve hoisted stylesheet ordering (in classic themes) to preserve CSS cascade. ...

This ensures that on-demand block styles are inserted right after the `wp-block-library` inline style whereas other stylesheets not related to blocks are appended to the end of the `HEAD`. This helps ensure the expected cascade is preserved. If no `wp-block-library` inline style is present, then all styles get appended to the `HEAD` regardless.

The handling of the CSS placeholder comment added to the `wp-block-library` inline style is also improved. It is now inserted later to ensure the inline style is printed. Additionally, when the CSS placeholder comment is removed from the `wp-block-library` inline style, the entire `STYLE` tag is now removed if there are no styles left (aside from the `sourceURL` comment).

Lastly, the use of the HTML Tag Processor is significantly improved to leverage `WP_HTML_Text_Replacement`.

Developed in https://github.com/WordPress/wordpress-develop/pull/10436

Follow-up to [61008].

Props westonruter, peterwilsoncc, dmsnell.
Fixes #64099.

Built from https://develop.svn.wordpress.org/trunk@61174


git-svn-id: http://core.svn.wordpress.org/trunk@60510 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2025-11-07 04:29:33 +00:00

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