[wp-trac] [WordPress Trac] #60961: WP_HTML_Processor::is_void() is missing deprecated tags

[WordPress Trac]

#60961: WP_HTML_Processor::is_void() is missing deprecated tags
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 Reporter:  westonruter   |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  HTML API      |    Version:  6.4
 Severity:  normal        |   Keywords:
  Focuses:                |
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 In a [https://github.com/WordPress/performance/pull/1115 pull request] to
 reuse `WP_HTML_Processor::is_void()` instead of my manual list of void
 tags, I noticed that unit tests were failing for tests involving the
 `BASEFONT`, `BGSOUND`, `KEYGEN,`, and `PARAM` tags. These deprecated/non-
 nonstandard tags are treated as void by the browser, and yet they are not
 currently included in `WP_HTML_Processor::is_void()`.

 Including `BASEFONT`, `BGSOUND`, and `KEYGEN` may not be warranted
 considering that none of these are seen in HTTP Archive (see
 [https://docs.google.com/spreadsheets/d/1grkd2_1xSV3jvNK6ucRQ0OL1HmGTsScHuwA8GZuRLHU/edit#gid=571472591
 sheet]). Nevertheless, `PARAM` is present, even though it rounds to 0.0%
 of pages.

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Ticket URL: <https://core.trac.wordpress.org/ticket/60961>
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