Internet Explorer 11 error "Unable to get property 'Windows' of undefined or null reference"

[SecondReality]

Very minor issue, tipboard seems to function well even with this error happening.

Error message (visible in the Internet Explorer Javascript console):

Unable to get property 'Windows' of undefined or null reference

It occurs at this point:

tipboard/tipboard/static/js/lib/jquery.fullscreen.js

Line 93 in 15cb0e3

var thisKeys = keys[BrowserDetect.browser][BrowserDetect.OS];

Reproduces on Internet Explorer 11.1066.14393.0

The jquery.fullscreen.js mentions that its source is http://www.quirksmode.org/js/detect.html, but it is no longer there.