How to block third-party cookies

If you don't know what third-party cookies are, consider reading our explanation first.

Blocking JavaScript third-party cookies

To block third-party cookies, find a JavaScript code that is setting third-party cookies and:

• change type attribute from text/javascript to text/plain (if type attribute missing, just add it)
• add data-cookiescript attribute and set it to accepted

All JavaScript with such attribute changes will only execute if user agreed with Cookie Policy.

Example of standard Google Analytics code

Change code from:

<script type="text/javascript">
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-XXXXXXXX-X', 'auto');
ga('send', 'pageview');
</script>

Change code to:

<script type="text/plain" data-cookiescript="accepted">
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-XXXXXXXX-X', 'auto');
ga('send', 'pageview');
</script>

Example of included JavaScript file

Change code from:

<script src="/js/myscript.js"></script>

Change code to:

<script type="text/plain" data-cookiescript="accepted" src="/js/myscript.js"></script>

Blocking iframe third-party cookies

To block third-party cookies set with iframe (like YouTube videos), find an iframe code that is setting third-party cookies and:

• change src attribute name to data-src
• add data-cookiescript attribute and set it to accepted

All iframes with such attribute changes will only show up if user agreed with Cookie Policy.

Example of standard YouTube video iframe

Change code from:

<iframe width="560" height="315" src="https://www.youtube.com/embed/xxxxxxxxx" frameborder="0" allowfullscreen></iframe>

Change code to:

<iframe width="560" height="315" data-src="https://www.youtube.com/embed/xxxxxxxxx" data-cookiescript="accepted" alt="" frameborder="0" allowfullscreen></iframe>

You can also add a text explaining user that he must accept cookie policy in order to see the video. Use "alt" attribute for that:

<iframe width="560" height="315" data-src="https://www.youtube.com/embed/xxxxxxxxx" data-cookiescript="accepted" alt="Please accept cookie policy first" frameborder="0" allowfullscreen></iframe>

Or you can add an image/YouTube thumbnail while YouTube video is blocked until user accepts cookie policy.

<iframe width="560" height="315" data-src="https://www.youtube.com/embed/xxxxxxxxx" data-cookiescript="accepted" alt="img src='https://img.youtube.com/vi/xxxxxxxxx/maxresdefault.jpg" frameborder="0" allowfullscreen></iframe>

Blocking embed / object / link third-party cookies

In the same manner you can block embed / object / link elements from setting third-party cookies

Example of embed element

Change code from:

<embed src="somefile.swf">

Change code to:

<embed data-src="somefile.swf" data-cookiescript="accepted" >

Example of object element

Change code from:

<object src="somefile.swf"></object>

Change code to:

<object data-src="somefile.swf" data-cookiescript="accepted" ></object>

Example of link element

Change code from:

<link href="http://fonts.googleapis.com/css?family=Roboto:100" rel="stylesheet" type="text/css">

Change code to:

<link data-href="http://fonts.googleapis.com/css?family=Roboto:100" data-cookiescript="accepted" rel="stylesheet" type="text/css">

Example of image element

Change code from:

<img src="http://example.com/image.jpg" />

Change code to:

<img data-src="http://example.com/image.jpg" data-cookiescript="accepted" />