[Support request] Issue Editing Elements – The response is not a valid JSON response

[Danielle]

I reset the permalinks and disabled each plugin but continue to get the error “Updating failed. The response is not a valid JSON response.” when editing the posts in the “Elements” tab. I’m trying to change the global page header specifically and I can’t.

[Leo]

Hi there,

Is this only an issue with Elements or all pages and posts as well?

Let me know 🙂

[Danielle]

Hi Leo – only with Elements. Other pages/posts have been working fine.

[Brent]

Are you using Cloudflare WAF? I had this issue with Cloudflare WAF blocking a specific URL path for elements. I can’t recall the exact path at the moment.

[Danielle]

Hi Brent – No, I’m not using Cloudflare WAF.

[Leo]

Hi Danielle,

Any chance you can start a staging site and disable all plugins except GP Premium for us to take a look?

You can use the provide info field to provide the credentials:
https://docs.generatepress.com/article/using-the-premium-support-forum/#private-information

Thanks 🙂

[Danielle]

Hey Leo – sure thing. Credentials added below.

[David]

Hi there,

if i open the developers console ( right click > inspect ) whilst editing the Element, and then update changes to see the JSON error – i can see a 403 forbidden error in the Console.

Can you check that on the live site ?

If that error is displayed there it seems like something on the server is blocking that request.

[Danielle]

I see that on the live site as well. How do I fix it?

[David]

Probably best to ask your Host, share them the console error and they can look to see why the REST API would be being blocked.

[Marc HootyApps.com]

I just installed wordpress with a basic install, no custom themes or plugins and received the same error. This fortunately has nothing to do with the GeneratePress theme 😉 .

Issue: Update from Webhost – “We installed a ModSecurity module for increasing the security of our servers. Its activity may cause such issues from time to time, when requests sent to the server match with mod_sec rules.”

Resolution: Webhost whitelisted the Modsecurity rule. That worked for me straightaway.

Hope it helps.

[Leo]

Thanks for sharing your solution!

[Author]

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