mirror of https://github.com/coder/coder.git
26 lines
824 B
Go
26 lines
824 B
Go
package coderd
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import (
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"net/http"
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)
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// LatencyCheck is an endpoint for the web ui to measure latency with.
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// allowAll allows any Origin to get timing information. The allowAll should
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// only be set in dev modes.
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//
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//nolint:revive
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func LatencyCheck() http.HandlerFunc {
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return func(rw http.ResponseWriter, r *http.Request) {
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// Allowing timing information to be shared. This allows the browser
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// to exclude TLS handshake timing.
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rw.Header().Set("Timing-Allow-Origin", "*")
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// Always allow all CORs on this route.
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rw.Header().Set("Access-Control-Allow-Origin", "*")
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rw.Header().Set("Access-Control-Allow-Headers", "*")
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rw.Header().Set("Access-Control-Allow-Credentials", "false")
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rw.Header().Set("Access-Control-Allow-Methods", "*")
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rw.WriteHeader(http.StatusOK)
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_, _ = rw.Write([]byte("OK"))
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}
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}
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