Getting "Redirect URI 'https://chatgpt.com/connector_platform_oauth_redirect' does not match allowed patterns." not allowed even allowed_client_redirect_uris is none in azureprovider

[AshokChava]

What happened?

Getting "Redirect URI 'https://chatgpt.com/connector_platform_oauth_redirect' does not match allowed patterns." not allowed even allowed_client_redirect_uris is none in azureprovider. This was working fine with 2.x version of fastmcp fine.

Example Code

Version Information

FastMCP version:                                                                             3.2.0
MCP version:                                                                                1.26.0
Python version:                                                                             3.12.7
Platform:                                                             macOS-26.3.1-arm64-arm-64bit
FastMCP root path: /Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12/site-packages

[marvin-context-protocol]

This issue is being automatically closed because we requested a minimal reproducible example (MRE) 7 days ago and haven't received a response from the issue author.

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