Fix out-of-band web payment authentication #1537
Merged
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Summary
When a user enters the in-app web payment authentication flow,
is taken to another app to complete payment authentication
out-of-band (i.e. a bank app), then returns to the WebView,
make a request to the completion URL.
This resolves the issue where the bank page loaded in the
WebView doesn't detect that the user returned from the
bank app.
Testing
Unit test and manual testing