Web/API/Response/Response

The Response() constructor creates a new Response object.

Syntax

var myResponse = new Response(body, init);

Parameters

body Optional: An object defining a body for the response. This can be null (which is the default value), or one of:

Blob BufferSource FormData ReadableStream URLSearchParams USVString

init Optional: An options object containing any custom settings that you want to apply to the response, or an empty object (which is the default value). The possible options are:

status

The status code for the reponse, e.g., 200.
statusText: The status message associated with the status code, e.g., OK.
headers: Any headers you want to add to your response, contained within a Headers object or object literal of ByteString key/value pairs (see HTTP headers for a reference).

Examples

In our Fetch Response example (see [[../../../../../../../mdn.github.io/fetch-examples/fetch-response/index|Fetch Response live]]) we create a new Response object using the constructor, passing it a new Blob as a body, and an init object containing a custom status and statusText:

var myBlob = new Blob();
var init = { "status" : 200 , "statusText" : "SuperSmashingGreat!" };
var myResponse = new Response(myBlob,init);

Specifications

Specification	Status	Comment
FetchThe definition of 'Response()' in that specification.	Living Standard	Initial definition

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`Response()` constructor Experimental'	Chrome Full support 42 Full support 42 Full support 41 Disabled' Disabled' From version 41: this feature is behind the `Experimental Web Platform Features` preference. To change preferences in Chrome, visit chrome://flags.	Edge Full support 14	Firefox Full support 39 Full support 39 Full support 34 Disabled' Disabled' From version 34: this feature is behind the `dom.fetch.enabled` preference. To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 29 Full support 29 Full support 28 Disabled' Disabled' From version 28: this feature is behind the `Experimental Web Platform Features` preference.	Safari Full support 10.1	WebView Android Full support 42	Chrome Android Full support 42 Full support 42 Full support 41 Disabled' Disabled' From version 41: this feature is behind the `Experimental Web Platform Features` preference. To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support Yes	Opera Android Full support 29 Full support 29 Full support 28 Disabled' Disabled' From version 28: this feature is behind the `Experimental Web Platform Features` preference.	Safari iOS Full support 10.3	Samsung Internet Android Full support 4.0
body parameter accepts ReadableByteStream Experimental'	Chrome Full support 52	Edge Full support ≤79	Firefox No support No	IE No support No	Opera Full support 39	Safari No support No	WebView Android Full support 52	Chrome Android Full support 52	Firefox Android No support No	Opera Android Full support 41	Safari iOS Full support 10.3	Samsung Internet Android Full support 6.0
body parameter can be `null` Experimental'	Chrome Full support Yes	Edge Full support ≤79	Firefox Full support 59	IE No support No	Opera Full support Yes	Safari No support No	WebView Android Full support Yes	Chrome Android Full support Yes	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS No support No	Samsung Internet Android Full support Yes

Legend

Full support: Full support
No support: No support
Experimental. Expect behavior to change in the future.': Experimental. Expect behavior to change in the future.
User must explicitly enable this feature.': User must explicitly enable this feature.