Hi! I would like to thank Roan Kattouw for helping me to adapt my Extension:WikiSync to use ResourceLoader. Before asking, I've spend some hours trying to get it to work, unsuccessfully. One of key errors was not so easy to guess: it turned out that browsers violate "self-closing" xml tags sometimes (a tag without nested text node - with slash inside), and it was such case with iframe. I probably even have heard about this few years ago, but already forgot it. While in Monobook and addScripts() head inclusion that was not critical (the extension worked), with bottom-inclusion it's much more critical. (I've observed non-closed tags in some old extensions, sometimes). The real nastiness is, that my extension used arrays to represent html /xml and the entries are "auto-closed", so the tree should be valid. I wasn't even thinking of possibility of non-closed tags (invalid tree) in my case. Dmitriy