Twitter 過去漏了設定 Cache-Control 標準表頭，導致傳送私訊的檔案會被 Firefox 快取七天，登出也不會被清掉。
Apr 4, 2020 · 2 min read
然後為什麼只在 Firefox 上出包？因為在 Chrome 中，如果你有設定無關的 Content-Disposition header （提示下載檔案並建議檔名），就剛好不會進行 cache。
Mozilla 公告：https://mzl.la/2JE6GBm
Twitter 的隱私問題揭露：
moznewszh
Mozilla 外電轉播
Mozilla 外電轉播
Mozilla 外電轉播
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