How can I use JavaScript to detect if I am on a cached page

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I started with the answer “Daniel” gave above but I fear that over a slow connection I could run into some latency issues.

Here is the solution that ultimately worked for me. On the server side I add a cookie refCount and set it’s value to 0. On document load in javascript I first check refCount and then increment it. When checking if refCount is greater than 1 I know the page is cached. So for this works like a charm.

Thanks guys for leading me to this solution.

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