[wp-trac] [WordPress Trac] #64513: HTML_Processor gets wrong breadcrumbs for elements in <head>

Thu Jan 15 22:49:58 UTC 2026

#64513: HTML_Processor gets wrong breadcrumbs for elements in <head>
--------------------------+-----------------------------
 Reporter:  vicobot       |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  HTML API      |    Version:  6.9
 Severity:  normal        |   Keywords:
  Focuses:                |
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 If you visit elements that typically appear in the `<head>`, like META or
 LINK, the HTML_Processor returns a breadcrumbs array with BODY instead of
 HEAD, e.g.

 Array
 (
 [0] => HTML
 [1] => BODY
 [2] => META
 )

 How to reproduce:

 - call `$processor = \WP_HTML_Processor::create_fragment($html)` on a full
 HTML page, e.g. by hooking into `wp_template_enhancement_output_buffer`
 - get `$processor->next_tag('META')` or some other tag that lives in
 `<head>`
 - get `$processor->get_breadcrumbs()` and check the resulting array, e.g.
 with `print_r()` or by doing an `array_diff()` with the expected result
 `['HTML', 'HEAD', 'META']`

 Wordpress: 6.9 (php8.2-apache docker)

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Ticket URL: <https://core.trac.wordpress.org/ticket/64513>
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