Facebook: Oh so sorry we didn't mean to, we will totally not use this requesting superuser totally by mistake you know. https://www.theregister.co.uk/AMP/2018/05/18/facebook_android_app_caught_seeking_superuser_clearance/
Why is this step necessary? mastodon.social might not be the server where you are registered, so we need to redirect you to your home server first.
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