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FetchLaterResult - Web APIs | MDN
Defer a
FetchLaterResult
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The FetchLaterResult interface of the fetchLater() API is returned by the Window.fetchLater() method after a deferred fetch has been created.
It contains a single activated property that indicates whether the deferred request has been sent out or not.
After a successful sending, the whole response is ignored — including body and headers — so the response of the deferred fetch is never returned to the FetchLaterResult interface.
Instance properties
FetchLaterResult.activatedRead only Experimental-
A read-only boolean field that indicates whether the deferred request has been sent out. This is initially set to
falseand will then be updated by the browser once the deferred fetch has been sent.
Examples
Defer a POST request for around one minute and create a function to check if sent
js
const result = fetchLater("https://report.example.com", {
method: "POST",
body: JSON.stringify(myReport),
activateAfter: 60000 /* 1 minute */,
});
function check_if_fetched() {
return result.activated;
}
Specifications
| Specification |
|---|
| Fetch # fetchlaterresult |
Browser compatibility
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