[wp-trac] [WordPress Trac] #21622: Validate or sandbox theme file edits before saving them (as is done for plugins)

[WordPress Trac]

#21622: Validate or sandbox theme file edits before saving them (as is done for
plugins)
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 Reporter:  eschwartz93              |       Owner:  westonruter
     Type:  enhancement              |      Status:  accepted
 Priority:  high                     |   Milestone:  4.9
Component:  Themes                   |     Version:  2.7.1
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:  administration
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Comment (by jdgrimes):

 Looking over the changes, I don't see any issues. I haven't tested it
 though.

 I do think that @johnbillion raises a good point about it being possible
 to break the editor via JS changes.

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Ticket URL: <https://core.trac.wordpress.org/ticket/21622#comment:35>
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