Hi,

@Ray , I confirm the test steps again.
1. link:
https://www.amazon.com/ap/oa?client_id=amzn1.application-oa2-client.ab453129884d4274ab73de27c818c8c2&scope=alexa%3Aall&scope_data=%7B%22alexa%3Aall%22%3A%7B%22productID%22%3A%22avs_test_device%22,%22productInstanceAttributes%22%3A%7B%22deviceSerialNumber%22%3A%2212345%22%7D%7D%7D&response_type=token&redirect_uri=https%3A%2F%2Flocalhost:3000/authresponse

2. paste to browser --> redirect to this UI:

​3. input the username and password and click --> will redirect another url:

​It will show some error, but we just use the information in the address
bar.

Thanks for everyone

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