Describe the bug

Following the README for rate limiting I am able to successfully add a rate limiter policy customPolicy, however, when I try to disable it for a route I am getting the error RateLimiter policy 'disable' not found for route 'route1'.

I think this might be caused by the code for validating routes being unable to detect these built in policies, since the collection appears empty.

Am I doing something incorrectly here?

To Reproduce

Using config example from rate-limiting.md

"ReverseProxy": {
    "Routes": {
      "route1" : {
        "ClusterId": "cluster1",
        "Match": {
          "Hosts": ["example.pageuppeople.com"]
        },
        "RateLimiterPolicy": "disable"
      }
    },
    "Clusters": {
      "cluster1": {
        "Destinations": {
          "destination1": {
            "Address": "http://example.com/"
          }
        }
      }

or with in-application config:

 new RouteConfig
        {
            RouteId = routeId,
            ClusterId = clusterId,
            Match = new RouteMatch
            {
                Hosts = commaSeparatedHosts.Split(","),
            },
            RateLimiterPolicy = "Disable"
        };

See my draft PR here, I am happy to provide a minimal example if that is required

Further technical details

• YARP 2.0.1
• Windows