Hmm, well backspace is the keyboard shortcut to go back in IE (if you press backspace on a normal page, you'll go back one), this must be what's happening. It must be on some version's of IE, you lose focus of the textarea when you select it with your mouse, and pressing backspace goes back one.

I'm not sure how much we can do with this, but I'll take a look.

Cheers,

Alex
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