BestHTTP is an easy to use, but still powerful plugin to take advantage of the potential in HTTP/1.1.
You can customize your requests to enable or disable various features, access and modify headers, use Rest APIs. Not to mention basic http features like persistent connections.
Most notable features are:
-Full iOS, Android and desktop support
-Full Windows Phone 8(8.1), Windows Store Apps(WinRT/Metro) and Universal buildssupport
-Full WebSockets support
-Full Cookie support
-Proxy support (Fiddler, Charles, etc.)
-Can be used with the Free version of Unitywith the help of Good ol' Sockets
-Easy to use api, yet you can fully customize your requests
-Time and etag based cache validation
-Access cached responses offline
-Supported gzip and deflate content encodings
-Streaming large files
-Streaming from locale cache!
-You can resume downloads using Range headers
-More in the Documentation
