PushMessageData: blob() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2023.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is only available in Service Workers.

The blob() method of the PushMessageData interface extracts push message data as a Blob object.

Syntax

js
blob()

Parameters

None.

Return value

A Blob.

Examples

js
self.addEventListener("push", (event) => {
  const blob = event.data.blob();

  // do something with your Blob
});

Specifications

Specification
Push API
# dom-pushmessagedata-blob

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
blob
Chrome – Full support
Chrome 50 (Release date: 2016-04-13)
footnote Full support
Edge – Full support
Edge 17 (Release date: 2018-04-30)
footnote Full support
Firefox – Full support
Firefox 44 (Release date: 2016-01-26)
footnote Full support
Opera – Full support
Opera 37 (Release date: 2016-05-04)
footnote Full support
Safari – Full support
Safari 16 (Release date: 2022-09-12)
footnote
footnote Notifications are supported on macOS Ventura and later.
Chrome Android – Full support
Chrome Android 50 (Release date: 2016-04-13)
footnote Full support
Firefox for Android – Full support
Firefox for Android 48 (Release date: 2016-08-02)
footnote Full support
Opera Android – Full support
Opera Android 37 (Release date: 2016-06-16)
footnote Full support
Safari on iOS – Full support
Safari on iOS 16.4 (Release date: 2023-03-27)
footnote
footnote Notifications are supported in web apps saved to the home screen.
Samsung Internet – Full support
Samsung Internet 5 (Release date: 2016-12-15)
footnote Full support
WebView Android – No support
WebView Android
footnote No support
WebView on iOS – No support
WebView on iOS
footnote
footnote Notifications are supported in web apps saved to the home screen.

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
No support
No support
See implementation notes.