Start a simple server from Terminal
As of macOS Monterey 12.3 Python 2 no longer comes pre-installed with the OS, so you will need to install Python 3 (brew install python) if not already installed. You can then run a simple server by navigating to the folder in terminal and entering:
python3 -m http.server 8080
You can change the port number at the end to avoid clashes with any other services running. For machines running Python 2 you can use this command:
python -m SimpleHTTPServer 8080