This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
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. |
Working 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.)