Python3 HTTP Server to enable CORS (Cross-Origin Resource Sharing)

SimpleHTTPServer-CORS.py

#!/usr/bin/env python3
from http.server import HTTPServer, SimpleHTTPRequestHandler, test
import sys

class CORSRequestHandler (SimpleHTTPRequestHandler):
    def end_headers (self):
        self.send_header('Access-Control-Allow-Origin', '*')
        SimpleHTTPRequestHandler.end_headers(self)

if __name__ == '__main__':
    test(CORSRequestHandler, HTTPServer, port=int(sys.argv[1]) if len(sys.argv) > 1 else 8000)

a oneliner:

python3 -c "from http.server import HTTPServer, SimpleHTTPRequestHandler as SHTH; c = type('CORSRequestHandler', (SHTH,), {'end_headers': lambda self: [self.send_header('Access-Control-Allow-Origin', '*'), self.send_header('Access-Control-Allow-Methods', 'GET'), self.send_header('Cache-Control', 'no-store, no-cache, must-revalidate'), SHTH.end_headers(self)]}); HTTPServer(('localhost', 8003), c).serve_forever()"