Capture content from URL and output it to a stream.
URL Format:
'http://domain[:port]/resource' e.g. 'http://www.imageen.com/test.jpg'
'https://domain[:port]/resource'
'ftp://user:password@domain[:port]/resource' e.g. 'ftp://user:password@ftp.example.com/Pictures/test.jpg'
ProxyAddress Format:
'domain:port' e.g. '10.2.7.2:8080'