I am doing a very simple thing, just sending a message to my Flask app via Socket.IO . It works like a charm with English, but some other languages break somewhere in the process.
Minimal working example follows.
testapp.py:
from flask import Flask
from flask_socketio import SocketIO
app = Flask('example')
socketio = SocketIO(app)
@socketio.on('test')
def on_connect(data):
print(data)
if __name__ == '__main__':
socketio.run(app)
index.html:
<!doctype html>
<html>
<body>
<script type="text/javascript" src="js/socket.io.js"></script>
<script>
var socket = io.connect('http://localhost:5000');
socket.on('connect', function() {
socket.emit('test', 'ASCII text');
socket.emit('test', 'Český text');
});
</script>
</body>
</html>
Instead of expected Český text, I am getting ÄŚeskĂ˝ text on the console.
I am using the newest versions of both the server packages (Flask-SocketIO 3.0.2, python-socketio 2.0.0, python-engineio 2.2.0) and the client (socket.io.js 2.1.1) and also checked that both of my files are UTF-8 encoded.
Some bug reports and questions mention a breaking change that happenned between 1.x and 2.x versions, so i tried using some older versions of the client (1.4.8, 1.7.4) instead of the newest one. The result was not much better: ÃÅeskÄË text.
This is beginners' stuff, so there must be a popular SO question covering it already. I probably just can't find it. So... what did I miss?