iOS MSAL : Authority validation is not supported for this type of authority

[alex-dokienko]

good day,

when I'm using my authorityUrl in this format
https://{tenant}.b2clogin.com/{tenant}.onmicrosoft.com/{policy}

I'm getting the error on policyTriggerInteractive callback
"MSALErrorDescriptionKey" : "Authority validation is not supported for this type of authority"
"MSALInternalErrorCodeKey" : Int64(-42008)
which stackoverflow say knowAuthorities should be properly set

But then I found that Microsoft guidelines says authority for iOS devices should be defined in this format
https://login.microsoftonline.com/tfp/{tenant}.onmicrosoft.com/{policy}

so when I changed to it (with some other tweaking to the plugin code to support new url format) I'm getting other error
[0] (null) "MSALErrorDescriptionKey" : "forbidden"
[1] (null) "MSALHTTPResponseCodeKey" : "403"
[3] (null) "MSALInternalErrorCodeKey" : Int64(-42007)

I don't know which format is required and which direction should I go
I'd really appreciate any feedback.

[redoz]

@alex-dokienko Did you ever manage to figure this one out?

[alex-dokienko]

@redoz
yes, I eventually resolved the issue, had to fork and managed to make it work with tfp url format
https://github.com/alex-dokienko/flutter_azure_b2c