POST $url, [$form_ref], [Header => Value,...] This works mostly like GET() with POST as the method, but this function also takes a second optional array or hash reference parameter ($form_ref). This argu- ment can be used to pass key/value pairs for the form content. By default we will initialize a request using the "application/x-www-form-urlencoded" content type. This means that you can emulate a HTML