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Why browser caching sometimes shows old results for dynamic tools?

I recently noticed a scenario where a web tool loads updated data (via JavaScript and backend API), but the browser (and proxy cache) still serves outdated content when v… (xem thêm)

I recently noticed a scenario where a web tool loads updated data (via JavaScript and backend API), but the browser (and proxy cache) still serves outdated content when viewed on a different device. Clearing the browser cache fixes it, but that’s not a scalable solution for users.

I’m curious: does Firefox’s caching behavior differ for pages that use heavy client-side updates (e.g., incremental score calculators) compared to standard static pages? Should we be explicitly sending cache-control headers like no-store or must-revalidate to prevent stale data?

Any documented guidance on how Firefox handles cache revalidation for dynamic web-apps would be helpful.

Thanks in advance for any pointers.

Được hỏi bởi William Thomas 1 tuần trước

Lần cuối trả lời bởi jscher2000 - Support Volunteer 1 tuần trước

Issue with zstd compression decompression in Firefox

Hello Mozilla Support Team, I am writing to report a problem with the Mozilla Firefox browser. After the latest update, the browser appears to no longer decompress conte… (xem thêm)

Hello Mozilla Support Team,

I am writing to report a problem with the Mozilla Firefox browser. After the latest update, the browser appears to no longer decompress content that is compressed using the zstd (Zstandard) algorithm.

Previously, I could view web pages or resources compressed with zstd without issue, but now they fail to display correctly (or give errors). I have tested this on multiple websites and different systems, which suggests the change is not specific to one site or machine.

Could you please clarify the following:

Has support for zstd‐compressed content been removed or disabled in the recent Firefox version?

If so, are there plans to restore this support in a future release?

Is there a workaround or configuration setting that allows enabling zstd decompression in the meantime?

Thank you for your attention to this matter. I appreciate your help in ensuring this functionality is restored or clarified.

Best regards, Oleh Boiko Windiws 10, FF 144.0.2

Được hỏi bởi kinoteatr.ua 1 tuần trước

Lần cuối trả lời bởi jscher2000 - Support Volunteer 1 tuần trước

Full access to some websites not possible

I am unable to navigate around some websites beyond the page on which I have landed. The site briefly (split second) looks OK and then gets slightly greyed and no other l… (xem thêm)

I am unable to navigate around some websites beyond the page on which I have landed. The site briefly (split second) looks OK and then gets slightly greyed and no other links on the site are accessible. Examples of sites: https://www.signia.net/en-gb/ https://www.flickr.com/

Anyone got any ideas?

Được hỏi bởi Simon Ford 1 tháng trước

Lần cuối trả lời bởi Denys 2 tuần trước