[wp-trac] [WordPress Trac] #60406: HTML API: CDATA Lookalike comments match invalid CDATA

[WordPress Trac]

#60406: HTML API: CDATA Lookalike comments match invalid CDATA
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 Reporter:  jonsurrell    |      Owner:  jonsurrell
     Type:  defect (bug)  |     Status:  assigned
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  HTML API      |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
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 `<![CDATA[…]>` is incorrectly treated as a CDATA lookalike comment. It
 will be parsed as a comment, but would never be a valid CDATA section
 because it is missing a closing brace. It must have `]]>` to close the
 section.

 [https://html.spec.whatwg.org/#cdata-sections See CDATA sections.]

 > CDATA sections must consist of the following components, in this order:

 > The string "<![CDATA[".
 > Optionally, text, with the additional restriction that the text must not
 contain the string "]]>".
 > The string "]]>".

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Ticket URL: <https://core.trac.wordpress.org/ticket/60406>
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