[Bug] `WithMtlsProofOfPossession()` Should Fail for /organizations Authority

[gladjohn]

Library version used

Latest

.NET version

NET 8

Scenario

ConfidentialClient - service to service (AcquireTokenForClient)

Is this a new or an existing app?

This is a new app or experiment

Issue description and reproduction steps

Currently, the WithMtlsProofOfPossession() validation logic ensures that requests using /common fail with an MsalClientException (MsalError.MissingTenantedAuthority). But no checks are done for /org or /consumers

Relevant code snippets

Expected behavior

Expected Behavior:

• Requests using /organizations should fail with an appropriate MsalClientException, similar to /common, as they do not specify a single-tenant authority.
• Requests using /consumers should not fail, as /consumers is a valid tenant.
• Write tests for both scenarios

Identity provider

Microsoft Entra ID (Work and School accounts and Personal Microsoft accounts)

Regression

No response

Solution and workarounds

No response