README.Worker.md

Cloudflare Worker

Use with discretion!

Having issues with unreachable hosts that should be reachable?

📝 Table of Contents

• Prerequisites
• Running

1️⃣ Prerequisites

Need to have Cloudflare Workers, and coded like below:

addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request))
})

async function handleRequest(request) {
  // Extract the value of the 'url' query parameter
  const urlParam = new URL(request.url).searchParams.get('url')
  
  // console.log(urlParam.toString())
  if (!urlParam) {
    return new Response('URL parameter is missing', { status: 400 })
  }

  try {
    return await fetch(urlParam.toString(), {
      headers: {
        "X-Source": "Cloudflare-Workers",
      },
    });
  } catch (error) {
    // If an error occurs during fetching, return an error response
    return new Response('Error fetching URL', { status: 500 })
  }
}

Test your worker by sending a request like https://xxxworker.xxxname.workers.dev/?url=some-url or just open it in a browser or use the online editor

🎈 Running

Set your worker url either in the .env where it is named CF=xxx or pass it through arguments -cf xxx

(Optional) You could also configure the priority, which does not support arguments, only environment variables which is in the config file named cf_priority, defaults to False, but you could set to True which would use Cloudflare first.