tomoinn/index.html

## index.html
<html>
<head>
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />
</head>
<body>
<a href='/?action=yes'>Yes!</a>
<a href='/?action=no'>No!</a>
</body>
</html>

## server.py
from gevent.wsgi import WSGIServer
from flask import Flask, request, make_response
from functools import wraps, update_wrapper
from datetime import datetime
app = Flask(__name__, static_url_path='')

def nocache(view):
    @wraps(view)
    def no_cache(*args, **kwargs):
        response = make_response(view(*args, **kwargs))
        response.headers['Last-Modified'] = datetime.now()
        response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
        response.headers['Pragma'] = 'no-cache'
        response.headers['Expires'] = '-1'
        return response
    return update_wrapper(no_cache, view)

@app.route('/')
@nocache
def hello_world():
    action = request.args.get('action')
    if action is not None:
        if action == 'yes':
            print('Yes selected!')
        if action == 'no':
            print('No selected!')
    return app.send_static_file('index.html')

http_server = WSGIServer(('', 8000), app)
http_server.serve_forever()
	<html>
	<head>
	<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
	<meta http-equiv="Pragma" content="no-cache" />
	<meta http-equiv="Expires" content="0" />
	</head>
	<body>
	<a href='/?action=yes'>Yes!</a>
	<a href='/?action=no'>No!</a>
	</body>
	</html>
	from gevent.wsgi import WSGIServer
	from flask import Flask, request, make_response
	from functools import wraps, update_wrapper
	from datetime import datetime
	app = Flask(__name__, static_url_path='')

	def nocache(view):
	@wraps(view)
	def no_cache(args, *kwargs):
	response = make_response(view(args, *kwargs))
	response.headers['Last-Modified'] = datetime.now()
	response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0, max-age=0'
	response.headers['Pragma'] = 'no-cache'
	response.headers['Expires'] = '-1'
	return response
	return update_wrapper(no_cache, view)

	@app.route('/')
	@nocache
	def hello_world():
	action = request.args.get('action')
	if action is not None:
	if action == 'yes':
	print('Yes selected!')
	if action == 'no':
	print('No selected!')
	return app.send_static_file('index.html')

	http_server = WSGIServer(('', 8000), app)
	http_server.serve_forever()