golden-layout: Closed panel element stay indefinitely on Detached DOM tree

I’m using Angular with Golden-layout, and using $compile to put my directives in the html I can get everything to work as expected.

However, using Profiling Tools from Chrome I noticed than upon closing of a panel the elements are not garbage collected, since all of them stay in the Detached DOM tree, even after waiting for a while. This causes my app to get more and more un-responsive.

If I search de DOM for the elements I don’t find them. So upon closing does golden-layout destroy or not the element? And if so, why aren’t mine destroyed?