package coderd

import (

"net/http"

)

// LatencyCheck is an endpoint for the web ui to measure latency with.

// allowAll allows any Origin to get timing information. The allowAll should

// only be set in dev modes.

//

//nolint:revive

func LatencyCheck() http.HandlerFunc {

return func(rw http.ResponseWriter, r *http.Request) {

// Allowing timing information to be shared. This allows the browser

// to exclude TLS handshake timing.

rw.Header().Set("Timing-Allow-Origin", "*")

// Always allow all CORs on this route.

rw.Header().Set("Access-Control-Allow-Origin", "*")

rw.Header().Set("Access-Control-Allow-Headers", "*")

rw.Header().Set("Access-Control-Allow-Credentials", "false")

rw.Header().Set("Access-Control-Allow-Methods", "*")

rw.WriteHeader(http.StatusOK)

_, _ = rw.Write([]byte("OK"))

}

}