[wp-trac] [WordPress Trac] #4608: HTML and Javascript Formatting

[WordPress Trac]

#4608: HTML and Javascript Formatting
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 Reporter:  nawingee        |       Owner:  (none)
     Type:  enhancement     |      Status:  closed
 Priority:  high            |   Milestone:
Component:  Administration  |     Version:
 Severity:  major           |  Resolution:  wontfix
 Keywords:                  |     Focuses:
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Comment (by ax3yui8stk):

 Its pretty much old ticket, but just want to add a few lines here:

 WordPress removes <script> and certain HTML tags for security reasons.
 This filtering happens through KSES, which sanitizes post content to
 prevent malicious code from running. That’s why even in the Code editor,
 JavaScript is stripped automatically.

 The Text Control plugin can’t fully bypass this because the KSES filter
 runs before content is saved to the database. The “Markdown” option also
 won’t help here and the error you saw likely comes from outdated PHP code
 in that old plugin.

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Ticket URL: <https://core.trac.wordpress.org/ticket/4608#comment:2>
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