BlobEvent

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2020.

* Some parts of this feature may have varying levels of support.

See full compatibility

The BlobEvent interface of the MediaStream Recording API represents events associated with a Blob. These blobs are typically, but not necessarily, associated with media content.

Constructor

BlobEvent(): Creates a BlobEvent event with the given parameters.

Instance properties

Inherits properties from its parent Event.

BlobEvent.data Read only: A Blob representing the data associated with the event. The event was fired on the EventTarget because of something happening on that specific Blob.
BlobEvent.timecode Read only: A DOMHighResTimeStamp indicating the difference between the timestamp of the first chunk in data and the timestamp of the first chunk in the first BlobEvent produced by this recorder. Note that the timecode in the first produced BlobEvent does not need to be zero.

Instance methods

No specific method; inherits methods from its parent Event.

Specifications

Specification
MediaStream Recording # blobevent-section

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
`BlobEvent`	Chrome – Full support Chrome 49 (Release date: 2016-03-02) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 21 (Release date: 2013-05-14) footnote Full support	Opera – Full support Opera 36 (Release date: 2016-03-15) footnote Full support	Safari – Full support Safari 14 (Release date: 2020-09-16) footnote Full support	Chrome Android – Full support Chrome Android 49 (Release date: 2016-03-09) footnote Full support	Firefox for Android – Full support Firefox for Android 21 (Release date: 2013-05-14) footnote Full support	Opera Android – Full support Opera Android 36 (Release date: 2016-03-31) footnote Full support	Safari on iOS – Full support Safari on iOS 14 (Release date: 2020-09-16) footnote Full support	Samsung Internet – Full support Samsung Internet 5 (Release date: 2016-12-15) footnote Full support	WebView Android – Full support WebView Android 49 (Release date: 2016-03-09) footnote Full support	WebView on iOS – Full support WebView on iOS 14 (Release date: 2020-09-16) footnote Full support
`BlobEvent()` constructor	Chrome – Full support Chrome 49 (Release date: 2016-03-02) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 21 (Release date: 2013-05-14) footnote Full support	Opera – Full support Opera 36 (Release date: 2016-03-15) footnote Full support	Safari – Full support Safari 14 (Release date: 2020-09-16) footnote Full support	Chrome Android – Full support Chrome Android 49 (Release date: 2016-03-09) footnote Full support	Firefox for Android – Full support Firefox for Android 21 (Release date: 2013-05-14) footnote Full support	Opera Android – Full support Opera Android 36 (Release date: 2016-03-31) footnote Full support	Safari on iOS – Full support Safari on iOS 14 (Release date: 2020-09-16) footnote Full support	Samsung Internet – Full support Samsung Internet 5 (Release date: 2016-12-15) footnote Full support	WebView Android – Full support WebView Android 49 (Release date: 2016-03-09) footnote Full support	WebView on iOS – Full support WebView on iOS 14 (Release date: 2020-09-16) footnote Full support
`data`	Chrome – Full support Chrome 49 (Release date: 2016-03-02) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – Full support Firefox 21 (Release date: 2013-05-14) footnote Full support	Opera – Full support Opera 36 (Release date: 2016-03-15) footnote Full support	Safari – Full support Safari 14 (Release date: 2020-09-16) footnote Full support	Chrome Android – Full support Chrome Android 49 (Release date: 2016-03-09) footnote Full support	Firefox for Android – Full support Firefox for Android 21 (Release date: 2013-05-14) footnote Full support	Opera Android – Full support Opera Android 36 (Release date: 2016-03-31) footnote Full support	Safari on iOS – Full support Safari on iOS 14 (Release date: 2020-09-16) footnote Full support	Samsung Internet – Full support Samsung Internet 5 (Release date: 2016-12-15) footnote Full support	WebView Android – Full support WebView Android 49 (Release date: 2016-03-09) footnote Full support	WebView on iOS – Full support WebView on iOS 14 (Release date: 2020-09-16) footnote Full support
`timecode`	Chrome – Full support Chrome 57 (Release date: 2017-03-09) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote footnote See bug 1573299	Opera – Full support Opera 44 (Release date: 2017-03-21) footnote Full support	Safari – Full support Safari 14.1 (Release date: 2021-04-26) footnote Full support	Chrome Android – Full support Chrome Android 57 (Release date: 2017-03-16) footnote Full support	Firefox for Android – No support Firefox for Android footnote footnote See bug 1573299	Opera Android – Full support Opera Android 43 (Release date: 2017-09-27) footnote Full support	Safari on iOS – Full support Safari on iOS 14.5 (Release date: 2021-04-26) footnote Full support	Samsung Internet – Full support Samsung Internet 7 (Release date: 2018-03-16) footnote Full support	WebView Android – Full support WebView Android 57 (Release date: 2017-03-16) footnote Full support	WebView on iOS – Full support WebView on iOS 14.5 (Release date: 2021-04-26) footnote Full support

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