If I run inspector(window), I get all undefined, did you know why?

Inspector

  
var inspector = function(obj){
		var config = config || {},
			html = '';
		
			config.iter = function(e){
				html = '<ul>';
				if( typeof e === "function" ){
//    				setTimeout(function(){
    					try{
    						//Run some code here
    						var c = e;
    						e = c();
    					}catch(err){
    					  //Handle errors here
//    					  e ;
    						e = false;
//    					  console.log(e);
//    					  console.log(err);
    					}
//    				}, 25);
				}
				
				console.log(typeof e);
				if( typeof e === "object" ){
//					Object.keys(e).forEach(function(k) {
					for(var k in e){
						var type = typeof e[k];
						if(type === "function" || type === "object" ){
								html += '<li>'+k+' - ';
									html += type;
									html += '<br/> Properties:<br/>';
										html += config.iter(e[k]);
								html += '</li>';
						}else{
								html += '<li>'+k+' - ';
									html += type;
								html += '</li>';
						}
					};
//					});
					
				}else if( typeof e === "function" ){
					html += '<li>';
						html += typeof e;
						html += '<br/> Properties:<br/>';
						html += config.iter(e);
					html += '</li>';
				}else{
					html += '<li>';
						html += typeof e;
					html += '</li>';
				}
				
				
				html += '</ul>';
				return html;
			};
			return config.iter( obj );
	};