Hey everyone! We’re facing a major issue with GrowthBook in Facebook and Instagram in-app browsers. When a user clicks on our ad link from within the Facebook or Instagram app, it opens our site in a WebView. In this environment, GrowthBook’s feature flag request fails, and we don’t receive the correct flag. This is affecting a significant portion of our traffic — thousands of users — which currently prevents us from using GrowthBook in production. Has anyone else encountered this issue or found a workaround?

Unfortunately, in-app browsers impose some pretty strict restrictions that can cause this behavior. There are, though, some workarounds. Can you share more about your setup?