rem: return this.link.href; 
add: if (this.link.href) { return this.link.href; }  var href = this.link.getAttributeNS("http: if (href == "") { throw "Empty href"; } return href; 
context:     linkURL : function () {        return this.link.href;    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/4981df3af6a651125314ec940c2bdfc77bca1ea7/nsContextMenu.js/buggy/xpfe/browser/resources/content/nsContextMenu.js