[Domain Mapping} Cross Domain Auto-login not working

The Cross Domain Auto-login feature in Domain Mapping doesn’t seem to be working on my multisite network. As far as I’m concerned, once I’m logged into the primary site, I should be able to access other sites without entering login credentials. But that’s not happening. I understand that the cookies might not be able to set on all sites if the number of sites is too much, but I just have 5 sites which are mapped. Here are the steps that we’ve tried:

1. Commenting out DOMAIN_CURRENT_SITE.

2. Using default .htaccess.

3. Running a full plugin/theme conflict test.

4. Enabling debug.

I was able to see the following log entry in the debug.log file multiple times generating consistently: https://pastebin.com/Eswy2bPt

Not sure how much relevant it is. Please advice.

  • Kasia Swiderska
    • Support nomad

    Hello Micha,

    I’m sorry to hear that Domain Mapping is not working correctly.

    What I was able to notice is that there is an error on mixed content, that is actually blocking SSO script that Domain Mapping is using for the cross-domain login and that seems to be the reason it’s not working.

    Can you try version of the Domain Mapping I am attaching (make sure you have a backup of your site before doing any changes)?

    See if this will help – that version should fix the issue with mixed content error.

    kind regards,


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