How to implement cross-domain login across multiple subdomains with Memberstack's single custom domain limit?

• 

  A J

  • November 30, 2025 17:48

  Hey ilyas el megarbi,

  Based on the tutorial the sub-domain needed to enter there does not refer to a list of sub-domains you want to setup the Cross domain login for. Instead, we just need to say what sub-domain do we want to show to the users when they try to login via SSO, by default its auth.memberstack.com, so when we setup a custom domain - in your case glori.io, you can setup the sub-domain to be something like login.glori.io in the member-facing subdomain setting.

  And the place where you have to list the root domain and all the sub-domains to enable Cross domain login feature is in the Application domain section (the one above the DNS settings that you are setting up currently) in Memberstack dashboard and then follow along with the guide to finish the setup. Hope this helps.

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  ilyas el megarbi

  • November 30, 2025 17:52

  Hey, I’m running into an issue with my cross-domain login setup.

  • Setup: get.glori.io is where users sign up, and after signing up they’re redirected to my.glori.io. I’ve configured the redirect links, added the cookie script, and authenticated the root domain.
  • Issue: The signup and redirect flow works correctly, and logging out redirects back to the signup page as expected. However, if I go back to the previous page or directly enter a Gated URL, the page still loads instead of showing an “access denied” or login requirement. Essentially, the session doesn’t seem to clear properly after logout.

  Here is the link to test it out:
  Sign up page: https://get.glori.io/sign-up-dummy

  Here is the Gated URLs,

  

  If I opened the gated URL in a different device that never been logined in to before, instead of redirecting me to the access page, it shows the Gated Page even when i've never loged an account in that device

   
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• 

  A J

  • November 30, 2025 17:54

  Hey ilyas el megarbi,

  Can you ensure that the starting with URLs are mentioned as slugs instead of the entire URL?

  i.e. if you want to gate access to https://my.glori.io/dashboard, can you set the rule as starting with rule with just dashboard/

  Do this for one URL and save it to test it out, ideally it should work. Same goes for the Access Denied URL, you could specify just access-denied

  Let me know if you still face any issue.

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  ilyas el megarbi

  • November 30, 2025 17:55

  It worked thanks a lot

  And also in my pawordless sign in page i set up this attribute to show the email where the 6-digit code is been sent but it doesn't work

  
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  A J

  • November 30, 2025 17:59

  Hey ilyas el megarbi,

  Do you also have this script embedded on the page custom code section before the closing body tag?

  <script>
    // Get the input and span elements based on the custom attributes
    const input = document.querySelector('[data-ms-member="email"]');
    const span = document.querySelector('[data-msx-text="email"]');
  
    // Add an event listener to the input element
    input.addEventListener('input', function() {
      // Update the text content of the span with the value of the input
      span.textContent = input.value;
    });
  </script>
  

  If yes, and if it still does not work, can you share a read-only link of the site to troubleshoot this?

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  ilyas el megarbi

  • November 30, 2025 21:18

  i didn'T install the script i just did thanks man

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• 

  A J

  • November 30, 2025 21:20

  Welcome 😇

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