Please only file reports about bugs in AMP here.
If you have a bug for AMP please fill in the following template. Delete everything except the headers (including this text).
When I am trying to login on iOS to add a comment using Google or Twitter I am stuck at the Connecting to … screen after I logged in at Google or Twitter and allowed the connection.
Please provide a public URL and ideally a reduced test case (e.g. on jsbin.com) that exhibits only your issue and nothing else. Provide step-by-step instructions for reproducing the issue:
Safari on iOS
AMP Version 1.5.2
Hi, this bug is reproducible.
Title:
Infinite logging to Google or Twitter account for posting of comment on website www.paulereno.de (Safari IOS)
Preconditions:
verify that you on production
Steps to reproduce:
1) Got to site www.paulreno.de
2) Open any article
3) scroll down until comment text box
4) Tap on icon Google or Twitter
5) Login to the account Google or Twitter
6) Observe result
Expected result: Login is should finished fast and redirect user to comment page
Actual result: Login to Google or Twitter account got stuck in infinite loading.
Environment:
Safari IOS ver. 12+
IOS ver.12+
AMP ver. 2004030010070 (production)
Attachments:

@westonruter Is there a process for forwarding WP plugin issues other than tagging you? :)
You could transfer the issue to https://github.com/ampproject/amp-wp perhaps.
But I believe this is actually an issue with Jetpack's comments module and not AMP or the AMP plugin. The AMP plugin has no such functionality to post comments via authentication with some provider. I suggest opening the issue on Jetpack's support forum: https://github.com/Automattic/jetpack
Thanks Weston.
Most helpful comment
Hi, this bug is reproducible.
Title:
Infinite logging to Google or Twitter account for posting of comment on website www.paulereno.de (Safari IOS)
Preconditions:
verify that you on production
Steps to reproduce:

1) Got to site www.paulreno.de
2) Open any article
3) scroll down until comment text box
4) Tap on icon Google or Twitter
5) Login to the account Google or Twitter
6) Observe result
Expected result: Login is should finished fast and redirect user to comment page
Actual result: Login to Google or Twitter account got stuck in infinite loading.
Environment:
Safari IOS ver. 12+
IOS ver.12+
AMP ver. 2004030010070 (production)
Attachments: