Identifying "Do Not Track" preferences exclusively in Internet Explorer 11 using Javascript

Is there a way to respect the Do Not Track (DNT) settings in all browsers using only JavaScript? I do not have access to server-side code on the host server. I found the following solution on Stack Overflow: 

var isDNT = navigator.doNotTrack == "yes" || navigator.doNotTrack == "1" || navigator.msDoNotTrack == "1";

This method works in most browsers, but I encountered issues with IE11 (specifically version 11.0.9600.16428 when run through Spoon.net), as it does not seem to recognize any of the DNT properties mentioned above. I tried changing the DNT preference through Internet Options > Advanced > Security ("Always send a Do Not Track header") and via Safety > Turn on tracking protection.

Can anyone confirm if this is a bug in IE11 or suggest an alternative JavaScript-only approach to detect these settings?

Thanks in advance, Ben

javascriptinternet-explorer-11

Answer №1

According to a Microsoft statement: "The standard has been updated" in IE11, moving the doNotTrack property to the window object.

As of now, only IE11 and Safari 6.1.1+ have implemented this update as shown in this window properties chart.

There is currently a debate/discussion from Mozilla on whether doNotTrack should be a window or navigator property.

Answer №2

If you haven't already, give a shot to 

window.external.msTrackingProtectionEnabled()
. This function provides a boolean value and is functional in IE 9/10. While I'm unable to verify at the moment, it's likely compatible with IE 11 as well.

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