OAuth2-Proxy Version

latest

Provider

azure

Current Behaviour of your Problem

I am using OAuth2 Proxy with Microsoft Azure AD as the identity provider. After successfully logging in, the expected headers (e.g., Authorization or X-Forwarded-*) are not being forwarded from my React App (my upstream) to my backend service. This is causing issues where the backend cannot authenticate requests or retrieve user information.
If there’s an official tutorial or guide for configuring OAuth2 Proxy with Microsoft Azure AD in this scenario, it would be greatly appreciated.

Configuration details or additional information

provider = "azure"
client_id = ""
client_secret = ""
cookie_secret = "***"

OIDC Issuer URL

oidc_issuer_url = "https://login.microsoftonline.com/***/v2.0"
redirect_url = "http://localhost:4180/oauth2/callback"

Allow all email domains for authentication

email_domains = ["*"]

Enable passing tokens and Authorization headers to upstream servers

pass_access_token = true
pass_authorization_header = true

Cookie settings

cookie_refresh = "1h"
cookie_name = "oauth2-proxy"
cookie_secure = false

Local address and port to bind OAuth2 Proxy

http_address = "0.0.0.0:4180"

Upstream application (react app)

upstreams = ["http://172.20.10.5:3000/"]
reverse_proxy="true"

Extra options for Azure provider

scope = "openid profile email https://graph.microsoft.com/.default"

Steps To Reproduce

No response