[wp-trac] [WordPress Trac] #42685: Complex javascript code breaks <pre> tags and Connection to server

[WordPress Trac]

#42685: Complex javascript code breaks <pre> tags and Connection to server
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 Reporter:  distante                 |       Owner:
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  Awaiting Review
Component:  Editor                   |     Version:  4.9
 Severity:  normal                   |  Resolution:
 Keywords:  reporter-feedback close  |     Focuses:
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Comment (by distante):

 Hi @dd32 thanks for response.

 I went to my hosting support regarding this and after first turning off
 some mod_security options and finally the complete mod itself the error
 was still there.

 I got this response in my final communication:

   We have conducted a thorough investigation to find out that it is a
 WordPress related issue.
   Having switched off Mod_security, we have tested it to get the same
 error.
   Here is the Apache error log entry:
   Handler for (null) returned invalid result code 70007, referer: http
 ://this-is-not-my-domain.com/wp-
   admin/post-new.php?wp-post-new-reload=true
   You can share this entry log in your WordPress ticket. It is a common
 error which cannot be fixed on our side, unfortunately.
   Also, you can look it up on the internet to find out a lot of similar
 cases which cannot be resolved.
   Our best guess is that the script cannot process the request because of
 some errors within the script itself.

 What I do not understand is why did you not got an error in your test.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42685#comment:2>
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