That is strange... Have you already pushed once? Maybe you missed the red light? If you push a second time without having travelled anywhere else the red button does nothing. (and the hero says so) A telltale sign that shows if you've already travelled or not is the blackboard. If there are colors and things like "A-B" on the blackboard, you are where the red bulb transports you to.
Thanks for the pictures.
Oh dear, that's annoying. I can't reproduce the error. I tried several browsers and it worked for me. :/ I will look into it, but my hope to find the mistake is low. I don't think it is related to the browser, but just to check - which one are you using? And which os?
(If you are still willing to play my little game and are using windows, there is always the downloadable version.)