Ajax http response headers - W3spoint

Ajax refers to asynchronous java script and xml. It is not a not a programming language. Ajax is of Asynchronous type. It normally uses XML, plain text or JSON to communicate with server i.e. for data transfer.

Note: Ajax is technology independent.

getAllResponseHeaders(): method is used to get the all header information from the server response.
getResponseHeader(): method is used to get the specific header information from the server response.

Example

<!DOCTYPE html>
<html>
<body>
 
<h2> Ajax http response headers</h2>
 
<p id="test"></p>
 
<script>
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
  if (this.readyState == 4 && this.status == 200) {
    document.getElementById("test").innerHTML =
    this.getAllResponseHeaders();
  }
};
xhttp.open("GET", "test.txt", true);
xhttp.send();
</script>
 
</body>
</html>

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