<!DOCTYPE html>
<html>
<body>
Test passes if it does not crash.
<script>
if (window.testRunner)
    testRunner.dumpAsText();

function errorHandler() {
    document.body.setAttribute("onclick", "var x=;");
}

window.onerror = errorHandler;
document.body.setAttribute("onclick", "var x=;");
document.body.onclick;
</script>
</html>