Yes, clicking on the door will cause text to appear that explains which color door to open along with a prompt to press space. Pressing space does nothing
I tried the WebGL build through itch’s app and had the same problem as you. There was also multiple graphical glitches that gave us an excellent screenshot to put into our game’s description. Seems like itch app handles WebGL differently compared to web browsers.
I made a Windows build for the game so feel free to try it through the itch app. It should definitely work better compared to the WebGL build.