php - Setting a cookie from a third-party domain -


so basically, trying build simple tracker method of learning how trackers work. , stumbled upon first problem. scenario this:

  • domain a, loads js (tracker) domain b
  • domain b, hosts tracker , backend

user loads domain a, , js loaded successfully. set-cookie (name, value, path, expiration) request sent domain b user, receives (i checked it). however, doesn't set cookie in browser. tried same in same domain , works, problem they're different domains.

what best workaround this? using iframes, maybe? setting cookie js reading response server?

toss in http headers

p3p cp="noi cor nid cur our nor"

p3p key, rest value

and you'll propably want brush on p3p http://www.w3.org/p3p/

or google "p3p"

in thread p3p dead ..but still work on ie. don't know chrome & ff stand on issue. any recommendation p3p policy editor?


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