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![Michael MacKenzie](https://uploads.teamtreehouse.com/production/profile-photos/11870218/micro_me1.webp)
Michael MacKenzie
8,633 PointsNow use a DOM element's innerHTML property to set the HTML inside the sidebar div to the server's response.
I don't know what I'm doing wrong, but I'm fairly sure I've got it correct... or mostly correct. It has to be a typo or something I'm not seeing. This is the error I'm getting.
Bummer: There was an error with your code: TypeError: onreadystatechange handler threw exception: 'null' is not an object (evaluating 'document.getElementById('sidebar').innerHTML = xhr.responseText')
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === 200) {
}
document.getElementById('sidebar').innerHTML = xhr.responseText;
};
xhr.open('GET', 'sidebar.html');
xhr.send();
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>AJAX with JavaScript</title>
<script src="app.js"></script>
</head>
<body>
<div id="main">
<h1>AJAX!</h1>
</div>
<div id="sidebar"></div>
</body>
</html>
1 Answer
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsYou're right, you just have a placement issue. The line that displays the response should be inside the conditional instead of after it. Just exchange lines 4 and 6.