Try the demo in Internet Explorer 11 and in a real browser.

IE now implements Range objects, representing a range of text that may span several elements. It's the basis for the standards-based part of bililiteRange. And it almost works. It's a little flaky: inserting text that contains '\n' without '\r', what I consider the "normal" way, automatically inserts the '\r'. Then using node.nodeValue returns a string without the '\r', but Range.toString() includes them. But that I can hack around.

The real bug is that ranges cannot end with a '\n'. If you try, the range is truncated. I can't find any way around that, so I had to change the way bililiteRange returned text: I went from range.toString() to element.textContent.slice(). Since that works with no other changes, I suspect that the error is in IE's toString() function itself rather than reflecting an underlying error in the Range.

Now to report that to Microsoft.

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