How to integrate 3rd party session into my website in iframe?

My website integrates some 3rd party w开发者_运维知识库eb pages using frame. Both my website and 3rd party website maintain own session separately. I am wondering if it is possible to sync them so that my session will not be expired when user only click buttons in iframe.

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You would need some code on the parent window, that refreshes the parent window every x minutes. It would kill whatever the client is doing in the iframe though.

Or the parent window could do ajax requests to the server every x minutes to keep the session alive.