I’ve a Microsoft Workforce’s utility, that’s an SPFx webpart that’s put in on the underlying SharePoint web site. The app is surfaced on a Tab.

For the previous couple of days I’m unable to authenticate with an AAD token. This has been working for probably the most a part of 2019, however for some cause it’s now throwing the next error within the console:

Once I undergo the community tab I can see the next:

The four authorize? endpoints seem like effective, however when it makes an attempt to name the https://ourtenant.sharepoint.com/_forms/spfxsinglesignon.aspx
I can see within the response headers are returning:

Which I consider is stopping the authentication by way of AadHttpClient from succeeding.

Does anybody understand how I can get the tenant x body choices to permit embedding in our Microsoft Workforce? (Once more, this used to work effective earlier than)