Successful establishment of a session requires that a Set-Cookie: round trip must happen between the client and the host, before any other HTTP requests arrive which referenc this same session-id. It sounds like the asynchronous HTTP requests which ask for the images are using a session-cookie that hasn't been established on the host yet ... or maybe, that do not yet have a session-id value to send. Use the browser's debuggers to carefully watch the round-trip ordering of the various HTTP exchanges. This is a fundamental HTTP-design issue which is not peculiar to Perl.

In reply to Re: Session being destroyed by Anonymous Monk
in thread Session being destroyed by FZ

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