What language should a C++ lover use to create a multiplayer browser game? [closed]

I'm trying to implement a multiplayer browser game and I'm not sure where to start since I've never made a browser application before. The game is very simple but fast communication between the two computers is essential. So I need to choose what language(s) to use and what libraries to use for networking and graphics.

I'm a big fan of C++ because it exposes lower level concepts and it's fast. Is there something equivalent for web applications, something that keeps fewer secrets from the developer?