Request: headers

Baseline

20173

headers Request Headers

Headers

Request() headers

const myRequest = new Request("flowers.jpg");
const myHeaders = myRequest.headers; // Headers {}

Headers Headers.append Request

const myHeaders = new Headers();
myHeaders.append("Content-Type", "image/jpeg");

const myInit = {
  method: "GET",
  headers: myHeaders,
  mode: "cors",
  cache: "default",
};

const myRequest = new Request("flowers.jpg", myInit);

const myContentType = myRequest.headers.get("Content-Type"); // 'image/jpeg'


Fetch # ref-for-dom-request-headers

API
HTTP (CORS)
HTTP

MDN

MDN 2026917

GitHub

API
Request
1. Request()
Fetch API
1. API