Jon added 1.5x scaling back to Webgames, but if I try to use it with Sretch to Fit, Scale to Fit (letterbox) or Scale to Fit (Fill), the game displays odd shutters and glitches everywhere.
If I try to use it with Full Screen or No Scaling though, the game plays and displays otherwise with no problems, but when screen has scrolling, the scene starts to experience odd glitching when moving around.