Hi developers,
Many of you asked me about the possibility to setting in a request a HTTP headers that are prohibited in XHR. The spec for this object prevents setting headers like User-Agent, Proxy-*, Accept-Encoding etc. I couldn't do much about it, until now.
I'd like to introduce the socket-fetch library that I've made for Advanced Rest Client. It is an implementation of a HTTP client that is using chrome.sockets.tcp API and create connection directly on socket. This means that the app will no longer have any limitations from transport specification (either Fetch or XHR API). It gives you more control over what you are sending to the server and makes the app even more powerful tool for API testing.
