I have created a nuxt application that includes firebase functionalities. I am using Auth, AppCheck and for AppCheck i am using Rechaptcha Enterprise as provider.
When i now want to use the login i get always redirected to the login page again. But only on mobile devices (iPad, Android and IOS), no matter on which browser. When i use any browser on my computer, it works without any problems.

I don’t have a clue how to search for the problem, because in my understanding a website functionality is treated the same way no matter where the browser is running on (excluding css stuff).

Does anybody has an idea what causes the problem or what are ways to figure out the problem?