I'm at the early stages of a project looking to embed a small WebGL mini-game inside of a larger C++ game (implementing the mini-game in the c++ game engine is not possible - it's an old engine and there isn't enough time to get people up to speed to do a native build). We want to embed either Chromium or Gecko/SpiderMonkey into our game to enable loading of Unity webgl builds. I'm just wondering if anyone has had success doing something similar. If we can go the Mozilla route (Gecko/SpiderMonkey), that would be best since there are some other js libraries that we'd like to use in the future. Anyone done something like this before?