add: if (iid.equals(Components.interfaces.nsILoadGroup)) return loadgroup;  
context:     getInterface: function(iid) {      if (iid.equals(Components.interfaces.nsIURIContentListener))        return this;      throw Components.results.NS_ERROR_NO_INTERFACE;    }
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/ce191154d3ebdeb2201b27a4d33146b546ab51dc/nsMailDefaultHandler.js/buggy/mail/components/nsMailDefaultHandler.js