Incompatible Markup Pointers Revisited
Last December I wrote about the Incompatible Markup Pointers exception in IE. I've been able to pinpoint the source of the exception more exactly: it occurs if you want to paste HTML into a TextRange, and the window the parent element of the TextRange belongs to does not have focus.
I've made two test cases, one where the window does not receive focus, and one where it does. Judge for yourself!
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