Google, stop stealing my keyboard focus!

For the last few weeks, I've become increasingly annoyed by google's search-as-you-type feature. I like it's speed and responsiveness. Yet, when I try to go back to the page I came from and hit `backspace`, the search input field is focussed and my query is edited. Obviously, this does not what I wanted.

I can disable search-as-you-type to get rid of this behavior, but that's like killing a mosquito with a laser.

Has anyone found a good workaround for this yet?

Google, don't steal my keyboard focus!