Good Day, I have Sitecore 9.1.1 installed on Azure, I'm trying to log in but it keeps redirecting to an error page, when I checked the identityServerAuthority URL I found that it is not working (returning HTTP ERROR 500)

Errors in log file:

  • AuthenticationScheme: "idsrv" was not authenticated.
  •   Action '"Sitecore.Plugin.IdentityServer.Controllers.AccountController.Login 
         (Sitecore.Plugin.IdentityServer)"' with id   
         '"fdd94ee6-ac7d-427b-a0f4-7f0bbafd474e"' did not match the constraint
         2019-12-30T00:00:54.8056717+00:00 [ERR] (Sitecore STS/RD2818786FC641)
         Connection id ""0HLS13DEQJHAB"", Request id   
         ""0HLS13DEQJHAB:00000001"": An unhandled exception was thrown by the 
         application. System.InvalidOperationException: No service for type   
         'Sitecore.Plugin.IdentityServer.SecurityHeadersFilter' has been   
  • Which URL are you using to login to Sitecore? Generally there are 3 URLs when you install Sitecore in Azure. 1 for xconnect, 2 for Identity Server and the other for Sitecore itself. I think you are trying to login via the Identity Server one. Please cross check the url once Commented Jan 3, 2020 at 13:25
  • I am experiencing the same issue. Can I ask if you have a resolution yet? Commented Oct 16, 2020 at 2:33

1 Answer 1


I know it has been a long time since you have asked this question but I just went through the same situation and struggled to find the issue.

In my case, I found a "special character" in the NewClaims row (where you add the Sitecore Role that your user is going to receive)

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And after I removed that "special character", everything worked fine as it supposed to.

Also, you can doublecheck in Notepad++ by enabling View > Show Symbol > Show All Characters and changing to Ansii Enconding > ANSI

enter image description here

I hope it also fix your issue and others whenever they search for the same problem.

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