Anchor scroll offset

Indeed :(
Right now this is not the case (I tried it and it works (with [Igor's fix][1]), but we wouldn't want to rely on this as it might break any time.

Personally, I believe that switching to the `load` event (instead of `readystatechange`) compicates things with no tangible benefit (so far).
But I am not too familiar with jqLite, so there is a good chance I am missing something.
Suggestions very welcome :)


[1]: https://github.com/angular/angular.js/pull/9540/files#diff-8e0d9e5c18fe4f1050484080525d4367L283