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Editorial Team
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Asked: 2026-05-15T04:04:34+00:00

I have a site on A.com and an iframe on B.com which reads info

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I have a site on A.com and an iframe on B.com which reads info from A.com. I realize that there is some problems with third party cookies, iframes and P3P – particularly in Safari [my problem]

Is it possible to instead, use AJAX or a hidden iFrame to pass the cookie information from A.com to B.com which will then “recreate” another cookie with the same information on the iframe in B.com.

I am trying to do this for authenication – i.e. a user is logged in on A.com and then goes to b.com and the iframe is also logged in ?

I was hoping to perhaps pass the data in a hidden iframe and “recreate” the cookie in the iframe on B.com using JavaScript? Is this possible ? Security issues ? What about HTTPS?

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1 Answer

  1. Editorial Team

    I’m afraid you’re out of luck. In Safari and IE8, it’s impossible to set a cookie in a domain which is not the primary document’s domain.

    So, in other words, you can only set cookies for a domain which is visible in the address bar. There are no tricks to get around this problem.

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