Response() - Web APIs 编辑

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 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

Browser compatibility

BCD tables only load in the browser

See also

• ServiceWorker API
• HTTP access control (CORS)
• HTTP