Re: [editing] What to do with IME input when typing over a large selection? (#59)

It's bad if JS spends a lot of time doing anything since Web is single threaded but I don't think we want to come up with an ad hoc solution just for editing.

Now, I don't think we should make the default selection behavior to do nothing.  The reason we can do nothing in other editing actions is that UAs don't typically allow editing of arbitrary text in regular non-editable parts of the page.  Such is not the case with selection.  UAs typically allow users to select any part of the page so disallowing that inside contentEditable=typing will be going against the norm.

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