rem: var feed = gFzFeedCache.getFeedWithUrl(url); 
add: var feed = FeedCache.getFeed(url); 
context: Feed.onProgress = function(event) {  var request = event.target;  var url = request.channel.originalURI.spec;  var feed = gFzFeedCache.getFeedWithUrl(url);  if (feed.downloadCallback)    feed.downloadCallback.onProgress(feed, event.position, event.totalSize);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/5ecb05ff263bc78940083e04cb1d43b3fbe97b91/Feed.js/buggy/mail/extensions/newsblog/content/Feed.js