Rangy is not up to date

[justb3a]

I get this warning:

'Range.detach' is now a no-op, as per DOM (http://dom.spec.whatwg.org/#dom-range-detach). wysihtml5.min.js?body=1:176

In some browsers there is just the html view.
Could not update rangy (https://github.com/timdown/rangy) because log4javascript is not supported.

Any idea?
Thanks