Send a new code via SMS broken in latest page layout versions

[gazzyt]

Deploy the sample at https://github.com/azure-ad-b2c/samples/tree/master/policies/mfa-email-or-phone updated with the latest page version of the mfa page.

Steps to reproduce:

• Register a new user
• In MFA choice choose Phone
• Enter region and phone number
• Press Send Code
• An SMS is sent to the phone
• Wait a minute to avoid hitting the throttling
• Click Send a New Code

Expected behaviour:

• A new SMS is sent to the phone
• User remains on the phone MFA page to enter the new code

Actual behaviour:

• A new SMS is sent to the phone
• The user is returned to the sign-in page

The issue seems to be related to the page layout version with later versions demonstrating the problem and earlier version working ok. Page versions tested:

• multifactor:1.2.12 - fails
• multifactor:1.2.9 - fails
• multifactor:1.2.8 - works
• multifactor:1.2.7 - works
• multifactor:1.2.5 - works

Under Chrome dev tools I see that the second request to https://\*\*\*\*\*\*.b2clogin.com/******.onmicrosoft.com/B2C_1A_Demo_SignUp_SignIn_PhoneOrEmailMFA/Phonefactor/verify has a status of cancelled with the non-working page versions.

Tested using Chrome on Windows 10 Version 118.0.5993.120 (Official Build) (64-bit). I want to use the latest versions as they have some useful fixes (e.g. submit when the return key is pressed).

[gazzyt]

This ended up being a platform issue that Microsoft have now fixed so I am closing this issue here.