[wp-trac] [WordPress Trac] #49378: Add warning banner about no-js in wp-admin

[WordPress Trac]

#49378: Add warning banner about no-js in wp-admin
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 Reporter:  tobifjellner    |      Owner:  (none)
     Type:  enhancement     |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Administration  |    Version:
 Severity:  normal          |   Keywords:
  Focuses:                  |
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 WordPress is becoming more and more depending on Javascript.

 Javascript may be unavailable for various reasons:
 - JS blocked in browser, either in general or for the current domain
 - If the site is accessed over https while site URL is set to http, then
 JS objects may be blocked due to mix content rules.

 If/when JS is unavailable, weird errors may occur in the admin panel, and
 the error texts may not immediately hint about the real reason. See
 https://core.trac.wordpress.org/ticket/43900 for instance.

 Obviously, the block editor is totally depending on JS, and it's already
 got a warning banner on it own (
 https://core.trac.wordpress.org/ticket/45453 )

 But I think it by now would be good to add a similar warning banner at the
 top of the wp-admin page:
 Please note that Javascript seems to be unavailable. You may have it
 blocked or you may be mixing access via https and http. This may lead to
 unexpected errors.
 So I suggest that we

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Ticket URL: <https://core.trac.wordpress.org/ticket/49378>
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