[wp-trac] [WordPress Trac] #64150: Late-printed styles are not hoisted to HEAD if wp-block-library is not enqueued

[WordPress Trac]

#64150: Late-printed styles are not hoisted to HEAD if wp-block-library is not
enqueued
--------------------------------------+--------------------------
 Reporter:  westonruter               |       Owner:  westonruter
     Type:  defect (bug)              |      Status:  assigned
 Priority:  normal                    |   Milestone:  6.9
Component:  Script Loader             |     Version:  trunk
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
--------------------------------------+--------------------------

Comment (by westonruter):

 Excellent.

 For reference, here is the plugin code I used to test this with a classic
 theme (e.g. Twenty Ten):

 {{{#!php
 <?php
 /**
  * Plugin Name: Disable Block Styles
  */

 add_action(
         'enqueue_block_assets',
         function (): void {
                 wp_deregister_style( 'wp-block-library' );
                 wp_register_style( 'wp-block-library', '' );
         }
 );

 add_action(
         'after_setup_theme',
         static function (): void {
                 remove_theme_support( 'wp-block-styles' );
         },
         PHP_INT_MAX
 );
 }}}

 Without that [https://github.com/WordPress/wordpress-
 develop/pull/10417/commits/e4bd8c70000b2ad65e72706e937e3db5131804f1
 commit], I see a lot of block-specific styles being enqueued. With the
 commit, they are excluded.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/64150#comment:12>
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