Cloudflare Workers Local Dev with Wrangler and Caddy

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Preface

As is well known, when deploying projects on CloudFlare Workers, the 1101 error may be triggered due to keywords.
Of course, the community already has mature code obfuscation solutions.
However, for better debugging and development, it's best to have a development environment that is not interfered with by CloudFlare.
CloudFlare officially provides a locally running Worker environment solution: Wrangler V3

Install Wrangler V3

Use nvm to install node.js npm 

Refer to the official documentation  https://github.com/nvm-sh/nvm?tab=readme-ov-file#install--update-script

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.40.3/install.sh | bash
export NVM_DIR="$([ -z "${XDG_CONFIG_HOME-}" ] && printf %s "${HOME}/.nvm" || printf %s "${XDG_CONFIG_HOME}/nvm")"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" 
nvm install node

Check node and npm

node -v
npm -v

Use npm to install Wrangler  

npm install -g wrangler

Start a worker.js

Create a working directory

mkdir cfworker
cd $_
Download the unobfuscated script from Joey's cfnew to the working directory just created
(just as an example, no specific meaning)
wget https://github.com/byJoey/cfnew/raw/refs/heads/main/%E6%98%8E%E6%96%87%E6%BA%90%E5%90%97 -O worker.js

Use Wrangler to start worker.js

npx wrangler dev worker.js
You can see it started successfully. And testing locally with curl can get HTTP data.

Use caddy to attach a domain

First set the domain resolution wr.icdyct.netlib.re
Install caddy using the official script
sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https curl
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list
chmod o+r /usr/share/keyrings/caddy-stable-archive-keyring.gpg
chmod o+r /etc/apt/sources.list.d/caddy-stable.list
sudo apt update
sudo apt install caddy

Caddyfile attach domain, note which port wrangler uses when starting (in the example above it's 8788 )
wr.icdyct.netlib.re
{
  reverse_proxy localhost:8788
}

Use a browser to access wr.icdyct.netlib.re
The page displays normally

Try with UUID in the path
The page displays normally

Test Business Functions

Try to get node links from the subscription link
curl -L https://wr.icdyct.netlib.re/351c9981-04b6-4103-aa4b-864aa9c91469/sub | base64 -d
Take the first one
vless://351c9981-04b6-4103-aa4b-864aa9c91469@wr.icdyct.netlib.re:443?encryption=none&security=tls&sni=wr.icdyct.netlib.re&fp=chrome&type=ws&host=wr.icdyct.netlib.re&path=%2F%3Fed%3D2048#%E5%8E%9F%E7%94%9F%E5%9C%B0%E5%9D%80-443-WS-TLS
Find a proxy client to try
Functions work normally

Test with curl in cmd
curl -x socks5h://127.0.0.1:10808 google.com
Functions work normally


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End


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