[wp-trac] [WordPress Trac] #32867: Wordpress replaces HTML entities for angle brackets in titles, breaking HTML validation

[WordPress Trac]

#32867: Wordpress replaces HTML entities for angle brackets in titles, breaking
HTML validation
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 Reporter:  CRCulver      |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  4.2.2
 Severity:  normal        |   Keywords:
  Focuses:                |
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 In the scientific field I blog about, the opening and closing angle
 brackets are technical symbols. Because in valid HTML these symbols must
 always be escaped, I typically write them in the Wordpress post editor
 with their HTML entities: `<` and `>`.

 In the body of a post, Wordpress preserves those HTML entities as HTML
 entities, so the result is conformant HTML. However, when I enter those
 HTML entities into the Title field for a post, and then click Save,
 Wordpress replaces the HTML entity with the actual character.
 Consequently, the page is not valid HTML, and the W3C validator for
 instance will throw up an error due to an unescaped angle bracket.

 Note that this does not happen with the other HTML entities for these
 particular symbols: `<` and `>`. If those are entered into the Title
 field of a post, they survive after the user clicks Save. So, `<` and
 `>` should get the same treatment.

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Ticket URL: <https://core.trac.wordpress.org/ticket/32867>
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