更改页眉
本例说明了如何添加、更改或删除在请求中发送或在响应中返回的标头。
您不能修改某些标题的值,例如 server
、eh-cache-tag
或 eh-cdn-cache-control
。
export default {
async fetch(request) {
const response = await fetch("https://example.com");
// Clone the response so that it's no longer immutable
const newResponse = new Response(response.body, response);
// Add a custom header with a value
newResponse.headers.append(
"x-workers-hello",
"Hello from Cloudflare Workers",
);
// Delete headers
newResponse.headers.delete("x-header-to-delete");
newResponse.headers.delete("x-header2-to-delete");
// Adjust the value for an existing header
newResponse.headers.set("x-header-to-change", "NewValue");
return newResponse;
},
};