"Not well-formed" error generated in console

[3Nex]

When I use it on an element that is defined directly in the index file, everything works perfectly.

If I use it in a partial that is being loaded onto the page via a $routeProvider, then the console complains with "not well-formed".

I've also tried having the partial contain the entire HTML structure, with and without the doctype declaration, just because it looked like that's what it expected, but that didn't change the error.

The scrollbar does initiate though and it does work.

Any idea on what could be causing the error and how to get rid of it?