Yes we don't understand. We're also exporting with WebAssemly support instead of AMS. The thing loads fine, then gets stuck: http://countryfortress.com/LamaExampleWebAssembly/.

By "webgl-first" you mean three.js or D3? We use Unity for iOS and Android, and we were looking to use a single tool for everything (if possible, of course). Is there any way to turn a simple Unity project into something that won't bring the browser to its knees?