Reader seems frozen due to completion block on `.cancel` being ignored
Closed this issue · 2 comments
Summary
Completion block on .cancel on SCPCancelable seems to be ignored.
Code to reproduce
Using the Stripe Terminal Example App
See Video: https://drive.google.com/file/d/1v0q7v2U_N1OBljzDipmWOeQCEuh4byZf/view?usp=drive_link
We were able to reproduce this issue by leaving the card in the reader, then trying to create a payment intent and cancel. This seems to happen after a few tries.
There could be other ways to reproduce this issue since a similar problem was found in production and it's unlikely the customer left their card in the reader.
When this happens it looks like the reader ignores all other commands and/or is waiting for the cancel to be completed which doesn't happen. I believe the only way to get out of this state is to toss the app out of memory OR by powering off the reader
iOS version
iPad iOS 16.6.1
Installation method
Ran the example app
SDK version
Version on example app - 3.2.1 , but we have seen a similar issue in our Prod app which is using an older version (SDK beta 9)
Other information
Logs from example App:
Might be similar to this ticket: #103
Thanks for the clear repro steps and video using the example app and all 🙏 Just ack'ing that we've been able to repro with those steps and are investigating it now. I suspect there's a conflict with the cancel handling and the "card left in reader" logic causing trouble here. Will update when we know more.
The fix for this issue will ship in our next release, 3.5.0, currently scheduled for April 8th. Thanks again for the detailed report.