How to fix Google Auth errors in Memberstack when users sign up through Instagram's mobile browser? Answered
Hey guys,
I’ve been in contact with Duncan about this but he recommended I post here to see your guys’s thoughts!
We've just began running some instagram ads for our membership but encoutered a very unsual memberstack error.
During our testing we attempted to create an account to our membership service (via the businesses website) using google Auth. When creating an account in the instagram browser, we were given the follow error messages.
We tested this out on several devices, all coming back with the same error message - only when we remained in the instagram mobile browser to create an account via google.
Highly unusual, as this doesn’t occur when we go through the same account opening proccess on the native browser (safari).
We are currently a couple days in running ads and are loosing out on massive ROAS due to this error.
Anyone have any ideas? Or know if there’s a way to set things up so when users click on our Instagram ad, they’re directed to their native browser automatically?
Thank you!!
Comments
4 comments
Script #191 can help here by automatically detecting when a user is inside an unsupported or limited browser (like Instagram’s in-app browser) and displaying a dismissible notice. That way, instead of silently failing with Google Auth, users would see a clear message prompting them to open the link in their native browser (Safari/Chrome) for a smoother signup experience.
That said, #191 doesn’t directly fix the Google Auth restriction itself—this error happens because Google blocks authentication inside embedded app browsers. The best long-term solution would be to combine #191 with a redirect strategy: funnel Instagram traffic to a landing page that detects the in-app browser, shows the compatibility notice, and then guides users to open the page in their default browser.
Hello Maran,
403 disallowed_useragent happens when the a browser window is being used inside a native app.
This issue was discussed in a different thread a while ago. A solution to address this would be to create a dedicated page to funnel all your Instagram traffic. On this page, implement custom code to redirect users to your main site while ensuring they are prompted to open it in their default browser.
Sadly this limitation is because of policies from Google Auth API. It's not directly because of Memberstack.
Hey Raquel Lopez thanks for this, I’ll take a look! 🙏
Oh so it's probably when they try to create an account with instagram navigation app i think. Most of users come from there
Thank you so much, it's a reliabe solution that we will do asap !
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