I started making a game the day r388-2 was released. everything was fine, today I noticed my game's fps dropped. I started to check what's wrong, and it turned out that now the game does not use web worker and runs in DOM, while the previous build of my game, automatically also defines web worker. All project settings are the same, the only difference is that in the zip file of the old game there is a file webworker.js and in the new version of this file is not.
P.S. Yeah, that sounds like a bug. I have 2 games, with the same settings, both projects have web worker: auto. The first game works with webworker and creates webworker.js file, but the second project does not create webworker.js file