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Wierd Caching Problem

Started by von Corax, May 06, 2018, 05:33:05 PM

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von Corax

For a week or so now I've been seeing an odd problem where, when I hit the "Back" button, I occasionally get an older version of the page rather than the most recent one. Most recently, Firefox's "Restore Previous Session" gave me the edit/preview of a post I made on April 28. I'm only seeing this behaviour on BG, so I'm inclined to rule out Firefox as the culprit.
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While we do use a server-side cache, it expires things in minutes; and it gets restarted daily. If you're seeing something older than 24 hours, it's definitely not BG itself.

It could be some equipment between you and BG (a proxy, something the ISP is doing, etc.) misbehaving. I'd still try clearing Firefox's cache (we are a very old-style site, so it's possible a Firefox bug could affect BG but nothing else you use -- e.g. we don't explicitly ask for client-side caches to expire, unlike most modern sites).
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