Got it to run on firefox in the end!
What a ridiculously polished and charming little game! The lighting especially is amazingly well done, just a great art style overall!
If I had any feedback to give it would be that the enemy pathfinding could be a bit shaky at times, especially around trees and lampposts. The feedback for taking damage needed to be a bit more obvious and the zombie sounds were quite low.
Very minor problems though, fantastic work overall!