Question of difference accessing MCP Server via YARP vs Direct

[andrew-at-v]

Question about routing as its bit not clear

When I access MCP Server directly, I can access it this way
http://localhost:5030/sse

But when I use YARP in between, I have to use this route
https://localhost:7176/api/public/weather ---> this is working
https://localhost:7176/api/public/weather/sse ---> this is not working !!!

"fallbackRouteWeatherPublic": {
  "ClusterId": "ClusterWeather",
  "AuthorizationPolicy": "ApiKeyPolicy",
  "Match": {
    "Path": "/api/public/weather/{**catch-all}"
  },
  "Transforms": [
    { "PathRemovePrefix": "/api/public/weather" }
  ]
}

So i wonder why route ended with /sse is not working with YARP