Issue Json problem in Wordpress

[Jonas N]

Server operating system version

Windows 2019

Plesk version and microupdate number

Plesk Obsidian

Hi everyone.
I have problem with a lot of my Wordpress sites " All of them "
The problem is when in widget funktion in Wordpress and we want to edit text and then save it we get the following error
Not a valid Json respond.
I have done a lot of different changes like

- New webconfig
-Changed permalinks
-Changed ssl settings and so on.
I am starting to think that this can be a firewall setting that is blocking this ?
Anyone that can help me with this ?

I can use the old widget and then it works or edit it in live mode.
But that is not the correct way in my mind = )

Kind regards
Jonas

 

[scsa20]

I currently do not have a Windows instance of Plesk spun up to test with but make sure your URL rewrite is configured properly. Other things to check includes:

• Making sure you're not mixing content (HTTP and HTTPS).
• Configuration of Cloudflare or other proxies (disable it for testing if you do).
• Make sure you don't have a define( 'WP_HOME' OR define( 'WP_SITEURL' in your wp-config.php file (or is configured properly)
• Temporary disable the firewall and check.
• Disable all plugins and check

 

[cloudbyte]

Maybe it's related to this:

Question - Verbs allowed by default in PHP

Hi! We have noticed that some Wordpress sites have JSON errors because the php handler (created by Plesk) does not allow the "OPTIONS" verb (in IIS handlers mappings). Verbs are defined in handler mappings at the website level created by Plesk. In other words, we cannot define them in the root...

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