Perf regression Microsoft.Identity.Web.GraphServiceClient

[JoshLozensky]

Microsoft.Identity.Web Library

Microsoft.Identity.Web

Microsoft.Identity.Web version

3.7.1

Web app

Not Applicable

Web API

Protected web APIs call downstream web APIs

Token cache serialization

Not Applicable

Description

The GraphServiceClient.AuthenticateRequestAsync() method is creating a new instance of AllowedHostsValidator on every call and needs to be a static member instead.

Reproduction steps

Call GraphServiceClient.AuthenticateRequestAsync

Error message

No response

Id Web logs

No response

Relevant code snippets

N/A

Regression

No response

Expected behavior

Similar performance as before the new validation went in.

[JoshLozensky]

Addressed in #3251

[JoshLozensky]

Possibly related to #3227