Getting Date from http header response

Question

Okay so I can access the HTTP ajax response header using

xhr.getAllResponseHeaders();

but it doesn't seem to get the Date with it, though its there:

 [Chrome]
**Response Header**
Access-Control-Allow-Origin:*
Cache-Control:no-cache
Content-Length:8092
Content-Type:application/json; charset=utf-8
**Date:Thu, 15 Jan 2015 16:30:13 GMT**
Expires:-1
Pragma:no-cache
Server:Microsoft-IIS/8.0
TotalCount:116
X-AspNet-Version:4.0.30319
X-Powered-By:ASP.NET

and the code only shows this :

[output on alert xhr.getAllResponseHeaders();]

Cache-Control: no-cache
Pragma: no-cache
Content-Type: application/json; charset=utf-8
Expires: -1

here's the the ajax call:

   $.ajax({
        url: url,
        type: "GET",
        contentType: "application/json;charset=utf-8",
        async: true,
        success: function (data,status, xhr) {

        displayNewData(data);
        alert(xhr.getAllResponseHeaders());

    },
    error: function () {
    alert(url);

    }
});

Is there a way where I can get the Date in the response header?

Answer 1

It might be the case you are making a CORS request and the headers are filtered out for security reasons.

See also similar question about missing response headers in ajax request . The solution might be to set this HTTP header in the server response:

Access-Control-Expose-Headers: Date

Answer 2

This Helped :

var req = new XMLHttpRequest();
req.open('GET', document.location, false);
req.send(null);
var headers = req.getAllResponseHeaders().toLowerCase();
alert(headers);

Accessing the web page's HTTP Headers in JavaScript

Answer 3

in your success method:

 success: function (data,status, xhr) {

    console.log(xhr.getResponseHeader('Date'));


},

If response is a success

res=xhr.getResponseHeader('Date');

if response fails

res=data.getResponseHeader('Date');

Answer 4

If you are using Nginx, you can put below code in Nginx config file:

add_header 'Access-Control-Expose-Headers' 'Date';

for real config example:

location / {
    add_header 'Access-Control-Allow-Origin' '*';
    add_header 'Access-Control-Expose-Headers' 'Date';
    root /usr/local/nginx/html;
    index  index.html index.htm;
}

After restarting your nginx service, you can call getAllResponseHeaders again and it will show you the "Date".