How to Play a Godot 4 HTML Project Locally?

Question

I have exported the web version of my Godot 4, it is in a folder on my local drive.

Because of the SharedArrayBuffer dependency I can not just double-click in the index.html file. If I do so I see this error:

Error The following features required to run Godot projects on the Web are missing: Cross Origin Isolation - Check web server configuration (send correct headers) SharedArrayBuffer - Check web server configuration (send correct headers)

How can I run it in local?

Answer 1

This python script allows you to open a simple web server running in port 8000:

#!/usr/bin/env python3
from http import server # Python 3

class MyHTTPRequestHandler(server.SimpleHTTPRequestHandler):
        def end_headers(self):
                self.send_my_headers()
                server.SimpleHTTPRequestHandler.end_headers(self)

        def send_my_headers(self):
                self.send_header("Access-Control-Allow-Origin", "*")
                self.send_header("Cross-Origin-Embedder-Policy", "require-corp")
                self.send_header("Cross-Origin-Opener-Policy", "same-origin")

if __name__ == '__main__':
        server.test(HandlerClass=MyHTTPRequestHandler)

Add this code in a file called server.py in the same folder or your web export (where the index.html is)

Then go to the folder with the terminal and execute:

> python3 server.py 

Then in your browser you can write the URL:

localhost:8000

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