That wasn't supposed to happen, the only explanation I can give you is that the web build got too silly with your browser and broke the camera for some reason.
I have no idea why the web version is different for everyone and gives a lot of bugs, but if you are still interested in trying the game out you could use the downloadable version, that one should be bug free and it only weights ~60mb.
Hopefully that bug on the web version doesn't ruin your vision of our game, thanks for the detailed description and your patience.