Like I said, I already found it and used it. The game worked right in full screen when built as a windows executable. It doesn't work right as HTML5. So I turned it back off.
That's not you. I only tested it as a windows executable. When I exported it for HTML5, I realized it had performance issues as a web game. By then though, it was time to submit to the jam. So it was too late to do anything about it.