[wp-trac] [WordPress Trac] #65317: Removal of HTML5 script theme support affects older theme gallery layout in frontend

[WordPress Trac]

#65317: Removal of HTML5 script theme support affects older theme gallery layout in
frontend
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 Reporter:  Ov3rfly        |       Owner:  (none)
     Type:  defect (bug)   |      Status:  reopened
 Priority:  normal         |   Milestone:
Component:  Script Loader  |     Version:  7.0
 Severity:  normal         |  Resolution:
 Keywords:  close          |     Focuses:
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Comment (by sabernhardt):

 > recent change #64442 in WordPress 7.0 which now breaks older sites with
 this theme and other themes which also copied that Twenty Ten approach in
 a similar way.

 7.0 would only //start// to break the gallery shortcode output for themes
 that use `preg_replace` with the `type` in double quotes within the
 `gallery_style` hook.
 `<style type=\"text/css\">`

 Twenty Ten and the other themes in the directory search all tried
 replacing the `<style>` tag with the `type` in single quotes (see
 [https://docs.google.com/spreadsheets/d/1A2dEiy9oJOx0Ls4DJtpNEW4dJa4WTXOoRU5cXEIA5D8/edit?usp=sharing
 spreadsheet]). At least 16 of those 70 themes already failed to remove the
 `<style>` tag in WordPress 5.3, and I [https://wordpress.org/support/topic
 /gallery_style-filter-does-not-remove-tag/ reported this to the author] of
 the 4 most popular of them.

 A dev note could still help other theme authors, though I do not plan to
 write it.

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Ticket URL: <https://core.trac.wordpress.org/ticket/65317#comment:4>
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