shankamley are you able to retrieve the URL of the page that's blank, and/or any javascript error message if there are any?
At which stage of the login flow do you see the blank page? After a successful login when returning to Flarum?
The social login process uses a popup to open a second page on top of Flarum. I'm not sure how the webview will handle the 2 windows. The original window needs to stay open while the oauth flow happens in the popup. If you need the flow to happen all in a single window, you might need a custom extension because the current Flarum system for social logins depends on a popup being used.
