This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The isReload
read-only property of the 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.
Syntax
var reloaded = FetchEvent.isReload
Value
A Boolean
.
Example
self.addEventListener('fetch', function(event) { event.respondWith( if (event.isReload) { //Return something } else { //Return something else }; ); });
Specifications
Specification | Status | Comment |
---|---|---|
Service Workers The definition of 'isReload' in that specification. |
Editor's Draft | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 40.0 | 44.0 (44.0)[1] | No support | 24 | No support |
Feature | Android | Android Webview | Firefox Mobile (Gecko) | Firefox OS | IE Mobile | Opera Mobile | Safari Mobile | Chrome for Android |
---|---|---|---|---|---|---|---|---|
Basic support | No support | ? | 44.0 (44.0) | (Yes) | No support | ? | No support | 44.0 |
[1] Service workers (and Push) have been disabled in the Firefox 45 and 52 Extended Support Releases (ESR.)