FetchEvent.isReload

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句法
范例
浏览器兼容性
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过时
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

isReload 只读特性在 FetchEvent interface returns true if the event was dispatched by the user attempting to reload the page, and false otherwise. Pressing the refresh button is a reload while clicking a link and pressing the back button is not.

句法

var reloaded = FetchEvent.isReload

值

A 布尔 .

范例

self.addEventListener('fetch', function(event) {
  event.respondWith(
    if (event.isReload) {
      //Return something
    } else {
      //Return something else
    };
  );
});

浏览器兼容性

The compatibility table on 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. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`isReload` 弃用	Chrome 45	Edge 17	Firefox 44 — 74 不支持 44 — 74 Extended Support Releases (ESR) before Firefox 78 ESR do not support service workers and the Push API.	IE No	Opera 32	Safari No	WebView Android 45	Chrome Android 45	Firefox Android 44	Opera Android 32	Safari iOS No	Samsung Internet Android 5.0

图例

完整支持
不支持
实验。期望将来行为有所改变。
弃用。不要用于新网站。

另请参阅

元数据

最后修改： Dec 8, 2019

服务工作者 API
FetchEvent
构造函数
1. FetchEvent()
特性
1. client
2. clientId
3. isReload
4. navigationPreload
5. PreloadRequest
6. preloadResponse
7. replacesClientId
8. request
9. resultingClientId
方法
1. respondWith()
继承：
1. 事件
Related pages for Service Workers API

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句法

值

范例

浏览器兼容性

图例

另请参阅

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