I couldn’t figure out why my HTML5/JS Akihabara game was not loading and thought the error in the Firefox JavaScript Error Console “Not well formed” had something to do with it. Turns out that if Akihabara cannot find the audio files for your game, it hangs on loading and there is no error in the console to that effect.
I threw the OGGs and MP3s in the directory and we’re off to the races. Still get “Not well formed” but the game runs. Who knows?