[wp-trac] [WordPress Trac] #58648: Error: tinymce is not defined in post-new.php

[WordPress Trac]

#58648: Error: tinymce is not defined in post-new.php
---------------------------+-------------------------
 Reporter:  joemcgill      |      Owner:  joemcgill
     Type:  defect (bug)   |     Status:  assigned
 Priority:  normal         |  Milestone:  6.3
Component:  Script Loader  |    Version:  trunk
 Severity:  normal         |   Keywords:  needs-patch
  Focuses:  performance    |
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 The E2E tests began showing a `tinymce is not defined` error, which can be
 replicated in trunk by visiting the post edit screen and checking the
 developer console.

 After some debugging, this looks like it's due to an inline script that is
 printed after the tinymce scripts in `print_tinymce_scripts()`. For some
 reason, this function is causing the tinymce scripts to be printed with an
 `async` loading strategy, which result in the inline script being loaded
 before the tinymce scripts have loaded. This is likely related to [56033].

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Ticket URL: <https://core.trac.wordpress.org/ticket/58648>
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