This method is not available in the current implementation. A socket reported a communication error. The locator (URL) '' is invalid. The error is: ''. Cannot connect to the provider at the URL . Code: . The HTTP message is unexpectedly short. The following HTTP message does not begin with POST: The following HTTP POST statement has the wrong HTTP version: The following HTTP request line is malformed: The following HTTP response line is malformed: The following HTTP Content-Type header is malformed: The following HTTP Content-Type header specifies 'boundary' incorrectly: The following HTTP Content-ID header is malformed: The following HTTP Content-Length header is malformed: The following HTTP Transfer-Encoding header is malformed: