I think it's not what the OP is asking but you could reliably store small images (<4kb) in cookies (might have to encode certain chars like line endings?) and I suspect some browsers might even accept larger ones. You could also break up a bigger image across a hundred cookies. I embedded a bunch of PNGs written out in ASCII inside a polling application module so that the client would have no chance of losing them.

In reply to Re^2: Execute javascript before setting cookie headers by Your Mother
in thread Execute javascript before setting cookie headers by Vertigo

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