This is the event type for fetch events dispatched on the service worker global scope. It contains information about the fetch, including the request and how the receiver will treat the response. It provides the event.respondWith() method, which allows us to provide a response to this fetch.

MDN Reference

Hierarchy (view full)

Constructors

Properties

request: Request<unknown, any>
AT_TARGET: number
BUBBLING_PHASE: number
CAPTURING_PHASE: number
NONE: number

Accessors

  • get bubbles(): boolean
  • Returns true or false depending on how event was initialized. True if event goes through its target's ancestors in reverse tree order, and false otherwise.

    MDN Reference

    Returns boolean

  • get cancelable(): boolean
  • Returns true or false depending on how event was initialized. Its return value does not always carry meaning, but true can indicate that part of the operation during which event was dispatched, can be canceled by invoking the preventDefault() method.

    MDN Reference

    Returns boolean

  • get cancelBubble(): boolean
  • Returns boolean

    MDN Reference

  • set cancelBubble(value): void
  • Parameters

    • value: boolean

    Returns void

    MDN Reference

  • get composed(): boolean
  • Returns true or false depending on how event was initialized. True if event invokes listeners past a ShadowRoot node that is the root of its target, and false otherwise.

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    Returns boolean

  • get currentTarget(): undefined | EventTarget<Record<string, Event>>
  • Returns the object whose event listener's callback is currently being invoked.

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    Returns undefined | EventTarget<Record<string, Event>>

  • get defaultPrevented(): boolean
  • Returns true if preventDefault() was invoked successfully to indicate cancelation, and false otherwise.

    MDN Reference

    Returns boolean

  • get eventPhase(): number
  • Returns the event's phase, which is one of NONE, CAPTURING_PHASE, AT_TARGET, and BUBBLING_PHASE.

    MDN Reference

    Returns number

  • get isTrusted(): boolean
  • Returns true if event was dispatched by the user agent, and false otherwise.

    MDN Reference

    Returns boolean

  • get returnValue(): boolean
  • Returns boolean

    MDN Reference

  • get timeStamp(): number
  • Returns the event's timestamp as the number of milliseconds measured relative to the time origin.

    MDN Reference

    Returns number

  • get type(): string
  • Returns the type of event, e.g. "click", "hashchange", or "submit".

    MDN Reference

    Returns string

Methods

  • Returns the invocation target objects of event's path (objects on which listeners will be invoked), except for any nodes in shadow trees of which the shadow root's mode is "closed" that are not reachable from event's currentTarget.

    MDN Reference

    Returns EventTarget<Record<string, Event>>[]

  • Returns void

  • If invoked when the cancelable attribute value is true, and while executing a listener for the event with passive set to false, signals to the operation that caused event to be dispatched that it needs to be canceled.

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    Returns void

  • Parameters

    Returns void

  • Invoking this method prevents event from reaching any registered event listeners after the current one finishes running and, when dispatched in a tree, also prevents event from reaching any other objects.

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    Returns void

  • When dispatched in a tree, invoking this method prevents event from reaching any objects other than the current object.

    MDN Reference

    Returns void