'Range.detach' is now a no-op, as per DOM

I have been noticing this warning and error message in my console after updating Chrome to 36.0.1985.125.

Warning:

'Range.detach' is now a no-op, as per DOM (http://dom.spec.whatwg.org/#dom-range-detach).

Error:

Discontiguous selection is not supported.

Can be seen: http://rangy.googlecode.com/svn/trunk/demos/cssclassapplier.html

Other javascript/jquery plugins (wysihtml5, rangy) have also been affected, any solutions?

I'm still trying to decide what to do about this. See this Rangy issue (migration to GitHub not quite complete, sorry). I think it's unhelpful behaviour on the part of Chrome and would like it removed.

The offending code in Rangy is in a feature test that determines whether the browser supports multiple ranges within a selection (of the current mainstream browsers, only Firefox does). Since this doesn't seem to be going away I think I'm going to have to suck it up and add a browser sniff, which makes me sad.