FetchEvent: isReload property
Deprecated
Avoid using this feature in new projects. This feature may be a candidate for removal from web standards or browsers.
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
Note: This feature is only available in Service Workers.
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.
Value
A boolean value.
Examples
js
self.addEventListener("fetch", (event) => {
event.respondWith(async () => {
if (event.isReload) {
// Return something
} else {
// Return something else
}
})();
});