Why can't I Google SSO from a webview from the Stash Invest app but when I open the webview in Firefox, Google SSO works fine?
This is all on my Android phone but I use the Stash app for investing here https://www.stash.com/ but the Google SSO button redirects me to https://accounts.google.com/gsi/transform with a blank screen and nothing happens. If I instead open the webview in Firefox as part of the browser app, then Google SSO works fine for me. Since it works in Firefox as a browser it seems to me this must be a bug in Firefox when in a webview. Any idea what's going on?