Web features explorer - Fetch upload streams

Web features explorer

The fetch() method and Request() constructor accept a ReadableStream object as the request's body option, to stream upload data to the server.

Browser support

Chrome 105 Released on 2022-09-02
Chrome Android 105 Released on 2022-09-02
Edge 105 Released on 2022-09-01
Firefox Not supported Bugs: 1387483
Firefox for Android Not supported
Safari Not supported
Safari on iOS Not supported

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MDN documentation

Request: body property

Specifications

Fetch (#concept-body-stream), from Fetch Workstream (WHATWG).

Usage (according to Chrome Platform Status)

~0.004% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

Interop

Included in Interop 2026

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