cookies API 的 OnChangedCause 型別，代表觸發 cookie 資料變動的原因。
型別
此型別的所有值都是字串（string）。可用值包括：
evicted- 由於垃圾回收（garbage collection）而被刪除的 cookie。
expired- 由於過期而被刪除的 cookie。
explicit- 透過顯式呼叫（explicit call）
cookies.remove()而被插入或刪除的 cookie。 expired_overwrite- 被已過期（already-expired expiration date）cookie 所覆寫的 cookie。
overwrite- A call to
cookies.set()overwrote this cookie with a different one.
瀏覽器相容性
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||
|---|---|---|---|---|---|
OnChangedCause | Chrome Full support Yes | Edge No support No | Firefox Full support 45 | Opera Full support Yes | Firefox Android Full support 48 |
Legend
- Full support
- Full support
- No support
- No support
示例
你可以在 cookie 變更的時候監聽被通知的 cookies.onChanged 事件。此監聽器 passed 含有 cause 屬性，值為 OnChangeCaused 字串的 changeInfo 物件：
browser.cookies.onChanged.addListener(function(changeInfo) {
console.log('Cookie changed: ' +
'\n * Cookie: ' + JSON.stringify(changeInfo.cookie) +
'\n * Cause: ' + changeInfo.cause +
'\n * Removed: ' + changeInfo.removed);
});
致謝
此 API 基於 Chromium 的 chrome.cookies API 而來，文件改作自 Chromium 程式碼裡的 cookies.json。
Microsoft Edge 的相容資訊來自微軟公司，原文以創用 CC 姓名標示 3.0 美國版條款授權大眾使用。
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