Pages Plugins

Headers

This headers plugin adds headers to all responses which occur below it in the execution chain.

Installation

npm install --save @cfpreview/pages-plugins-headers

Usage

// ./functions/api/_middleware.ts

import headersPlugin from "@cfpreview/pages-plugins-headers";

export const onRequest: PagesFunction = headersPlugin({
  "Access-Control-Allow-Origin": "*",
});

The plugin takes the same argument as the new Headers() constructor:

• a Headers instance,
• an object of header names mapping to header values (i.e. Record<string, string>), or
• an array of header name, header value pairs (i.e. [string, string][]).