AADSTS9002325: Proof Key for Code Exchange is required for cross-origin authorization code redemption.

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Hi,

I download the smart applicaiton on my PC locally, and i try to use the local application Smart to connect to fhir service.
 The SPA redirect-URI is http://localhost:5000/sampleapp/index.html, which is exposed locally
 
I just try the test with your doc: https://learn.microsoft.com/en-au/azure/healthcare-apis/fhir/smart-on-fhir
The **cross-origin is enabled and well configured** in fhir server based on the doc

here are the errors:
scenario 1 : APP Error : AADSTS9002325: Proof Key for Code Exchange is required for cross-origin authorization code redemption.
When I use the SAP authentication:

scenario 2 : App Error :
When I use the Web Authentication, However, when I tried the web platform registration, I encountered another error. I believe using a single-page application for authentication is the recommended approach
 
so how to resolve this pb when we use SAP authentification?

Regards,

Start with the linked SMART on FHIR documentation and compare the localhost:5000/sampleapp/index.html redirect URI, cross-origin setting, and SPA or web platform registration. Reproduce the reported SAP and web-authentication scenarios, using successful authorization-code redemption as the completion check.

Written by the indexing model from the issue text.