I've added the esc and space to deselect, and shift+redo. Thanks, once you get used to your own hotkeys it gets hard to imagine what other people might want.

As for the hash, the original reason why I went with hash= was to preserve back and forward, but I guess that might not be so necessary considering I have undo and redo.

I know that my clutter can be a bit obnoxious, but just changing it to window.replace(hash) breaks a few other things, so it's left the way it is for now.

There is probably some HTML5 history API way to do it that lets me have back and forward without saving every history entry, I'll look into it.