Thanks for playing! I agree that I should have probably added a little conclusion after you beat all the levels (Honestly that should have been when the endless mode icon was added to your desktop), one of those things I just forgot about until it was pointed out to me.
Ah okay, so sound effects were playing for you but not the music, interesting. Yeah I'm not totally sure what I messed up/what changed with the web export, I'll have to look into it more once the voting period is over.