Updating failed. The response is not a valid JSON response.

  • I keep getting this error anytime I post a new knowledgebase article containing any hyperlinks at all. I’m using default Gutenberg editor.

    “Updating failed. The response is not a valid JSON response.”

    I even installed Really Simple SSL plugin but that didn’t help.

    Anyone have any ideas?

    The page I need help with: [log in to see the link]

Viewing 2 replies - 1 through 2 (of 2 total)
  • Moderator t-p

    (@t-p)

    It may be a lot of different things:
    – a plugin conflict either 1) a plugin doing something that creates output, thus breaking the response or 2) a plugin doing something with caching),
    – an overloaded server,
    – misconfigured http/https address in General Settings,
    – permalinks may need resetting,
    – theme/plugin conflict,
    – check Site Health: From your WordPress dashboard, if you go to Tools and then select Site Health, then under the Status tab on that page, WordPress will show you any improvement recommendations that could help your website. An issue related to Rest API could also cause the JSON response error on your website. Moreover, if you find any issue there, solving the issue might also fix the JSON response error for your website, etc.

    Thread Starter Chad

    (@chadi)

    Thanks for your help. The site health said

    The Authorization header comes from the third-party applications you approve. Without it, those apps cannot connect to your site.

    Flush permalinks.

    I went to the permalinks page, saved. Cleared W3 cache. Reran the site health test, same error. Odd.

Viewing 2 replies - 1 through 2 (of 2 total)
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