header.go
func (h *RequestHeader) ResetConnectionClose() {
	h.parseRawHeaders()
	if h.connectionClose {
		h.connectionClose = false
		h.h = delAllArgsBytes(h.h, strConnection)
	}
}
func (h *RequestHeader) ResetConnectionClose() {
	h.parseRawHeaders()
	if h.connectionClose {
		h.connectionClose = false
		h.h = delAllArgsBytes(h.h, strConnection)
	}
}
// ResetConnectionClose clears 'Connection: close' header if it exists.