421 Misdirected Request when invoking MCP Server via sse_client() #1642
Description
We have developed an MCP Server using the mcp.server.fastmcp Python SDK. The server works perfectly in our local environment. However, after deploying it as an Azure App Service, we consistently encounter the following error when invoking it using sse_client():
421 Misdirected Request
Any guidance on resolving this error or configuration changes required for Azure App Service would be appreciated.