Function getHeaderCanonical

header.go:105–114

getHeaderCanonical is a shortcut for Header.Get() which bypasses the CanonicalMIMEHeaderKey operation when we know the key is already in canonical form.

(h http.Header, key string)

// bypasses the CanonicalMIMEHeaderKey operation when we
// know the key is already in canonical form.
func getHeaderCanonical(h http.Header, key string) string {
	if h == nil {
		return ""
	}
	v := h[key]
	if len(v) == 0 {
		return ""
	}
	return v[0]
}

// setHeaderCanonical is a shortcut for Header.Set() which
// bypasses the CanonicalMIMEHeaderKey operation when we