У вашего броузера проблема в совместимости с HTML5
Sorry for posting for more than 1 month. I have many reason why it take so long.
1. Im lazy
2. My computer got broken for 2 weeks, but i got luck because the file dosn't vanish
3. Im still trying to make new thing
4. I have some personal problem from the last christmas that still hunting me until this day. and because of this problem, it make me more lazy to do things