[wp-trac] [WordPress Trac] #61576: HTML API: Improved spec support in 6.7

[WordPress Trac]

#61576: HTML API: Improved spec support in 6.7
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 Reporter:  dmsnell                   |       Owner:  (none)
     Type:  enhancement               |      Status:  new
 Priority:  normal                    |   Milestone:  6.7
Component:  HTML API                  |     Version:  6.6
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:
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Comment (by dmsnell):

 In [changeset:"58977" 58977]:
 {{{
 #!CommitTicketReference repository="" revision="58977"
 HTML API: Ensure that NULL and whitespace-only CDATA sections don't forbid
 FRAMESET.

 When CDATA sections (which can only occur inside SVG and MathML content)
 consist only of NULL bytes or whitespace characters they should not clear
 the "frameset ok" flag. Previously they have always been clearing this
 flag, but in this patch the logic is updated to detect these sequences
 properly.

 Developed in https://github.com/WordPress/wordpress-develop/pull/7230
 Discussed in https://core.trac.wordpress.org/ticket/61576

 Follow-up to [58867].

 Props dmsnell, jonsurrell.
 See #61576.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/61576#comment:135>
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