tencent cloud

function handleRequest(request) {
  return new Response('Edge Functions, Hello World!');
}

addEventListener('fetch', event => {
  const request = event.request;
  // If the request URL contains the string /ignore/, Edge Functions forwards the current request back to the origin.
  if (request.url.indexOf('/ignore/') !== -1) {
    // The event.respondWith method is not invoked.
    return;
  }

  // Customize content in the edge function to respond to the client.
  event.respondWith(handleRequest(request));
});

addEventListener('fetch', event => {
  // If the function code throws an unhandled exception, Edge Functions forwards the current request back to the origin. 
  event.passThroughOnException();
  throw new Error('Throw error');
});