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 Anyone knows anything about p3p policies? (Solved)


Tomas NielsenPost date: 2007-02-07 00:07

I need to set a third party cookie for a project but Internet Explorer is will not let me read back a third party cookie. Firefox happily delivers the content accross sites but not IE.

I set the cookie using the correct domain but when I reference and object from another domain the cookie is blocked by explorer even though the request is in the right domain of the cookie.

From what I read I need a p3p (/w3c/p3p.xml) policy and I have drafted one but it does not seem to help.

Anyone has any ideas?


Tomas NielsenPost date: 2007-02-07 22:16

I'll answer my own post in case anyone needs the solution.

Apparently if I add the following http-header:

P3P: CP="CAO PSA CONi OTR OUR DEM ONL"

When I set the cookie. It will be available even if the page is accesed as a third party.

I'm not sure what kind of securit Microsoft think is added by that but if it floats their boat - ok with me.  :-)


Tomas NielsenPost date: 2007-02-10 13:03

Some more info in the matter:

IBM has this nice Policy editor you can play with. Makes your policy valid without hacking XML files.

http://www.alphaworks.ibm.com/tech/p3peditor




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