Бамбæр æй:
after saving, you have to bypass your browser's cache to see the changes. Mozilla/Safari/Konqueror: hold down Shift while clicking Reload (or press Ctrl-Shift-R), Internet Explorer: press Ctrl-F5, Opera: press F5.

mw.loader.load( "//meta.wikimedia.org/w/index.php?action=raw&ctype=text/javascript&title=User:VasilievVV/global.js", "text/javascript" );