Transferable streamsLimited availability
Streams are transferable objects, which can be moved between contexts such as windows and workers.
Not yet supported in all major browsers — check the table and provide a fallback.
Browser support
DesktopChrome
1–86Not supported
87+Supportedsince Nov 17, 2020
Current: 155Edge
12–86Not supported
87+Supportedsince Nov 19, 2020
Current: 154Firefox
1–102Not supported
103+Supportedsince Jul 26, 2022
Current: 157Safari
✕Not supportedup to 27
Current: 27MobileChrome Android
18–86Not supported
87+Supportedsince Nov 17, 2020
Current: 155Firefox Android
4–102Not supported
103+Supportedsince Jul 26, 2022
Current: 157Safari iOS
✕Not supportedup to 27
Current: 27How to use
Not supported in Safari, Safari iOS. Use feature detection below and provide a fallback (or a polyfill) for those browsers.
Example
Full syntax and examples are on MDN: Transferable objects.
Feature detection
JS · check before using
if ("ReadableStream" in globalThis && "transferable" in ReadableStream.prototype) {
// ReadableStream.transferable is available
}Documentation (MDN)
Specification
Sub-features
Support for each part of the feature (3). The overall table above shows when the whole feature works.
| Sub-feature | Chrome | Edge | Firefox | Safari | Chrome Android | Firefox Android | Safari iOS |
|---|---|---|---|---|---|---|---|
| ReadableStream.transferable | 87 | 87 | 103 | 27 | 87 | 103 | 27 |
| TransformStream.transferable | 87 | 87 | 103 | ✕ | 87 | 103 | ✕ |
| WritableStream.transferable | 87 | 87 | 103 | ✕ | 87 | 103 | ✕ |