FetchLaterResult
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Experimental:This is anexperimental technology
Check theBrowser compatibility table carefully before using this in production.
TheFetchLaterResult interface of thefetchLater() API is returned by theWindow.fetchLater() method after a deferred fetch has been created.
It contains a singleactivated 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 theFetchLaterResult interface.
Instance properties
FetchLaterResult.activatedRead onlyExperimentalA 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 aPOST request for around one minute and create a function to check if sent
const result = fetchLater("https://report.example.com", { method: "POST", body: JSON.stringify(myReport), activateAfter: 60000 /* 1 minute */,});function checkIfFetched() { return result.activated;}Specifications
| Specification |
|---|
| Fetch # fetchlaterresult |