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<html><body><h2>The XMLHttpRequest Object</h2><p>The getResponseHeader() function is used to return specific header information from a resource, like length, server-type, content-type, last-modified, etc:</p><p>Last modified: <span id="demo"></span></p><script> const xhttp = new XMLHttpRequest(); xhttp.onload = function () { document.getElementById("demo").innerHTML = this.getResponseHeader("Last-Modified"); } xhttp.open("GET.html", "ajax_info.txt"); xhttp.send();</script></body><!-- /js/tryit.asp?filename=tryjs_ajax_lastmodified Thu, 06 Feb 2025 19:15:40 GMT --></html>