ajax socketio,socketio请求头问题

eventlet is the best performant option, with support for long-polling

and WebSocket transports.

gevent is supported in a number of different configurations. The

long-polling transport is fully supported with the gevent package, but

unlike eventlet, gevent does not have native WebSocket support. To add

support for WebSocket there are currently two options. The

gevent-websocket package adds WebSocket support to gevent, but

unfortunately this package is current only available for Python 2. The

other alternative is to use the uWSGI web server, which comes with

WebSocket functionality. The use of gevent is also a performant

option, but slightly lower than eventlet.

The Flask development server based on Werkzeug can be used as well,

with the caveat that it lacks the performance of the other two

options, so it should only be used to simplify the development

This option only supports the long-polling transport.