package connection import ( "fmt" "net/http" "github.com/cloudflare/cloudflared/h2mux" ) const ( responseMetaHeaderField = "cf-cloudflared-response-meta" ) var ( canonicalResponseUserHeadersField = http.CanonicalHeaderKey(h2mux.ResponseUserHeadersField) canonicalResponseMetaHeaderField = http.CanonicalHeaderKey(responseMetaHeaderField) responseMetaHeaderCfd = mustInitRespMetaHeader("cloudflared") responseMetaHeaderOrigin = mustInitRespMetaHeader("origin") ) type responseMetaHeader struct { Source string `json:"src"` } func mustInitRespMetaHeader(src string) string { header, err := json.Marshal(responseMetaHeader{Source: src}) if err != nil { panic(fmt.Sprintf("Failed to serialize response meta header = %s, err: %v", src, err)) } return string(header) }