add: chan.loadFlags |= nsIRequest.LOAD_BYPASS_CACHE; 
context: function loadURLAsync (url, observer){    var chan = _getChannelForURL (url);    return chan.asyncOpen (new StreamListener (url, observer), null);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/45c353e9aa1e6f3520b887db284ca8c0d9f4389f/venkman-url-loader.js/buggy/extensions/venkman/resources/content/venkman-url-loader.js