[wp-trac] [WordPress Trac] #25863: Core not working when served as application/xhtml+xml

Thu Nov 7 12:51:30 UTC 2013

#25863: Core not working when served as application/xhtml+xml
--------------------------+-----------------------------
 Reporter:  pnutus        |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Validation    |    Version:  3.7.1
 Severity:  normal        |   Keywords:
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 All pages in Core has the following first lines:

 {{{
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes();
 ?>>
 }}}

 The Doctype implies HTML5, but the {{{xmlns}}} attribute implies XHTML.
 The server I'm deploying on is interpreting the file as XHTML and serving
 it as {{{application/xhtml+xml}}}. Some Core pages contain named entities
 such as {{{ }}}, which do not work when the page is served as
 {{{application/xhtml+xml}}} (at least not in WebKit/Blink browsers).

 What is the point of the {{{xmlns}}} attribute, as it is deprecated in
 HTML5? Should we remove it?

 Or change the named entities to numeric? related: #13341 #9030

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Ticket URL: <http://core.trac.wordpress.org/ticket/25863>
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