@shopify/shopify-app-remix/src/server/authenticate/helpers/respond-to-options-request.ts

Shopify Remix - to simplify the building of Shopify Apps with Remix

import {BasicParams} from '../../types';

import {ensureCORSHeadersFactory} from './ensure-cors-headers';

export function respondToOptionsRequest(
  params: BasicParams,
  request: Request,
  corsHeaders?: string[],
) {
  if (request.method === 'OPTIONS') {
    const ensureCORSHeaders = ensureCORSHeadersFactory(
      params,
      request,
      corsHeaders,
    );

    throw ensureCORSHeaders(
      new Response(null, {
        status: 204,
        headers: {
          'Access-Control-Max-Age': '7200',
        },
      }),
    );
  }
}