header.go
func (h *ResponseHeader) Reset() {
	h.disableNormalizing = false
	h.noDefaultContentType = false
	h.resetSkipNormalize()
}
func (h *ResponseHeader) Reset() {
	h.disableNormalizing = false
	h.noDefaultContentType = false
	h.resetSkipNormalize()
}
// Reset clears response header.