Insufficient rights in customizer at wordpress multisite install with custom domains

[pavl1]

I have wordpress multisite install with custom domain for each site, except main. When I click on publish button in customizer at custom domain site, wordpress notify me "You need a higher level of access" and in dev console show response from admin-ajax.php: data: "invalid_nonce", success: false. If I deactivate "Multisite URL Fixer" customizer works great, but links to network parts wrong and can't upload images.

[JulienMelissas]

Hmmm, I've not run into this, and I run multisites all with separate domains using the customizer. That said, I'm using this plugin as an MU-plugin. Can you try that?

[pavl1]

Sorry for delay. I try this plugin as MU-plugin, but no success, error the same: insufficient rights and invalid nonce in dev console

[JulienMelissas]

@pavl1 -- did you ever figure the issue out? Did you try with all of your plugins disabled and a default WP theme? I have managed over 5 multisites running this plugin and have never run into this issue (or seen another mention of it), so I feel like it might be related to something else?

Feel free to reopen if you are still having this issue.

[jmrcs]

REQUEST TO OPEN THIS ISSUE.

This problem happens to me in a MULTISITE with Gutenberg active. If I deactivate Gutenberg editor, everything works.

There is something wrong with Multisite Url Fixer + Gutenberg editor + Editing Permissions.

Thank you so much!

[hofmannsven]

I also get an error 403 for all API requests.

[JulienMelissas]

I've reopened the issue. Thank you all for writing in regarding this.

Unfortunately, I don't have time to solve this right now personally, but would welcome anyone who is able to look at this to submit a fix or PR.