[wp-trac] [WordPress Trac] #48268: Updating failed. Error message: The response is not a valid JSON response.

[WordPress Trac]

#48268: Updating failed. Error message: The response is not a valid JSON response.
-------------------------------+------------------------------
 Reporter:  phpdocs            |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Posts, Post Types  |     Version:
 Severity:  critical           |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
-------------------------------+------------------------------

Comment (by ncpr):

 Seeing same on one of our 5.3 installations using Twenty Nineteen. Happens
 when editing posts or pages, in any field as far as we can tell, but Quick
 Edit works for some things just fine.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/48268#comment:5>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform