[wp-trac] [WordPress Trac] #57552: Add 'wp-polyfill' to _wp_get_iframed_editor_assets() for inert attribute in Firefox.

[WordPress Trac]

#57552: Add 'wp-polyfill' to _wp_get_iframed_editor_assets() for inert attribute in
Firefox.
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 Reporter:  wildworks                         |       Owner:
                                              |  hellofromTonya
     Type:  defect (bug)                      |      Status:  closed
 Priority:  normal                            |   Milestone:  6.2
Component:  Editor                            |     Version:
 Severity:  normal                            |  Resolution:  fixed
 Keywords:  has-patch gutenberg-merge commit  |     Focuses:
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Changes (by hellofromTonya):

 * status:  reviewing => closed
 * resolution:   => fixed


Comment:

 In [changeset:"55181" 55181]:
 {{{
 #!CommitTicketReference repository="" revision="55181"
 Editor: Add 'wp-polyfill' to _wp_get_iframed_editor_assets() for inert
 attribute in Firefox.

 Adds the polyfill script to the iframe to make the `inert` attribute work
 correctly in Firefox. This solves the problem that the site editor can
 operate on the block editor in Firefox even in browse mode.

 Why?

 The inert attribute is intended to render the element and its sub-tree
 elements `inert`, but Firefox doesn't support this attribute. For the
 `inert` attribute to work as intended in Firefox, even within an iframe,
 the script needs to be injected into the iframe as well as the global
 document.

 References:
 * [https://github.com/WordPress/gutenberg/pull/47398 Gutenberg PR 47398].

 Follow-up to [53160].

 Props wildworks, mamaduka, youknowriad.
 Fixes #57552.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/57552#comment:10>
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