Memory leak on docs.angularjs.org

[olostan]

(Based on http://stackoverflow.com/questions/19889702/is-this-a-memory-leak-of-angular)

When opening http://docs.angularjs.org/ switching topics, Node Count according to TimeLine in Chrome DevTools growth upper and upper.

After approx. 50 sec quick clicking I got about 90000 nodes and 300mb.

As a site with documentation is heavily used not only by old developers, but also for newcomers, this issue can put AngularJS in not very attractive light....

May be related with #2624
or https://code.google.com/p/v8/issues/detail?id=2073 or may be it is Disqus issue https://groups.google.com/forum/#!msg/disqus-dev/PFlJ68J--44/Qfqn_7uEOCsJ ?

Tested on Chrome 33.0.1705.0 canary, 30.0.1599.101

Hope this is not AngularJS issue but still think that it would be not bad to recheck once more.

[petebacondarwin]

Duplicate of #4864