rem: return this._allResponseHeaders;  
add: return this._allResponseHeaders; 
context: 	getAllResponseHeaders: function(){		return this._allResponseHeaders;	},
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/XhrIframeProxy.js/buggy/www/resources/dojo-ajax/src/io/XhrIframeProxy.js