[wp-trac] [WordPress Trac] #44516: Unable to edit theme's file on multisite from default editor

[WordPress Trac]

#44516: Unable to edit theme's file on multisite from default editor
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 Reporter:  prashantvatsh      |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Administration     |     Version:  4.9.6
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:  multisite
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Comment (by prashantvatsh):

 Replying to [comment:3 jeremyfelt]:
 > Thanks for opening a ticket @prashantvatsh, sorry for the delayed
 response.
 >
 > Is this still an issue in WordPress 5.3.2?
 >
 > If so, it would be helpful to know a few things that may help in
 reproducing the issue:
 >
 > * Is this a subdomain or subdirectory configuration?
 > * Does the issue occur when all plugins are disabled and when a default
 theme is activated?
 > * Are you able to upload media files or plugins manually?
 >
 > I've changed the component from Editor to Administration as I'm not sure
 we really have a component that covers the file editor. I'm also going to
 attach the screen shot directly so that the link to it is unnecessary.

 1. I tried this on the subdirectory configuration.
 2. Yes, all the plugins were disabled and Twenty Twenty theme was active
 during my latest test.
 3. Yes, I am able to upload plugins manually in the plugins folder and
 then could easily activate them.

 Please check the latest error screenshot: https://prnt.sc/qe2l7x

 The error is coming in the latest version of WordPress as well.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44516#comment:4>
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