[wp-trac] [WordPress Trac] #44571: force_balance_tags breaks JavaScript

[WordPress Trac]

#44571: force_balance_tags breaks JavaScript
-----------------------------+-----------------------------
 Reporter:  yellowafterlife  |      Owner:  (none)
     Type:  defect (bug)     |     Status:  new
 Priority:  normal           |  Milestone:  Awaiting Review
Component:  Shortcodes       |    Version:  4.9.7
 Severity:  normal           |   Keywords:
  Focuses:                   |
-----------------------------+-----------------------------
 Input:
 {{{
 <?php
 echo force_balance_tags('<script>console.log("extest:", 0<=1);</script>')
 ?>
 }}}

 Output:
 {{{
 <script>console.log("extest:", 0< =1);</script></script>
 }}}
 (no longer valid JavaScript)

 Context:

 I use tiny (<20KB) JS programs for interactive illustrations inside
 tutorials on a WP blog. These would most commonly break on pages where
 excerpts are shown (post list, search) and it took a little while to
 narrow this down to force_balance_tags running for !--more splitter in
 get_the_content.

 Workarounds: enclosing JS code in a comment
 {{{
 <script><!-- code --></script>
 }}}
 which is a legacy part of spec
 https://html.spec.whatwg.org/multipage/scripting.html#restrictions-for-
 contents-of-script-elements

 Could the script-tags be treated like the comments in this regard? This is
 a rather unobvious behaviour.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/44571>
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