How do I set cookies from outside domains inside iframes in Safari?

Question

From the Apple developer faq

Safari ships with a conservative cookie policy which limits cookie writes to only the pages chosen (\"navigated to\

Answer 1

This page suggests that you place some javascript in your pages which detects the absence of an always-there cookie. When it finds that the cookie has not been set, it posts the required session data to a page which sets the cookie, and redirects you back to the originating page.

Apparently the POST is enough to satisfy Safari's 'have I navigated to this domain' test, so from then on it accepts cookies from that domain.

Of course, it's not the nicest of code, but may well solve your problem.