Third Party Cookie Setter

It is sometimes not possible to set a cookie from a third party framed site the first time a user visits the page.

This is often necessary for a legitimate site to function.

This solution fixes this issue by attempting to set a cookie, or redirecting the user out of the frame to to parent window, setting a cookie, and returning the user back to the parent page and framed page.

Languages

JavaScript

Example

The framed site includes the check if the cookie can be set and whether an attempt has been made

<script src="/path/to/csThirdPartyCookie.js"></script>
<script>
window.onload= function(){
    var thirdPartyCookie = new csThirdPartyCookie();
    if (!thirdPartyCookie.check()) {
        // cookies cannot be set so user should be informed
    }
};
</script>

The cookie setter sets a cookie and returns to the parent and framed page made

<script src="/path/to/csThirdPartyCookie.js"></script>
<script>
window.onload= function(){
    var thirdPartyCookie = new csThirdPartyCookie();
    thirdPartyCookie.setAndReturn();
};
</script>

Demo

Open the below URL in a reset (Safari > Reset Safari..) instance of Safari (or another browser that doesn't support third party cookies) and you should see the page on crowdsurge.com, holding an iframe from amazonaws.com perform a redirect on the top window to amazonaws.com where a cookie is then set and automatically redirected to the original URL. Inspect cookies to see 'cs_thid_party_accept' has now been set on amazonaws.com.

http://www.crowdsurge.com/public-repos/third-party-cookie-setter/example/