[wp-trac] [WordPress Trac] #56990: Render blocking CSS `classic-themes.css` unnecessarily enqueued

[WordPress Trac]

#56990: Render blocking CSS `classic-themes.css` unnecessarily enqueued
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 Reporter:  adamsilverstein          |       Owner:  (none)
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  6.1.2
Component:  Themes                   |     Version:  6.1
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:  css, performance
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Comment (by sabernhardt):

 Some themes we do not control probably need these default styles.
 Otherwise, Twenty Sixteen would need to update the `font-size` property in
 `blocks.css` in addition to the Twenty Ten fixes.

 The `has_block` function checks the post content, but blocks can be in
 widget areas for 'classic' themes.

 If the test problems cannot be resolved, could this be an inline script
 added to the `wp-block-library` stylesheet handle?

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Ticket URL: <https://core.trac.wordpress.org/ticket/56990#comment:18>
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