gistfile1.py

from tipfy import RequestHandler
from tipfyext.jinja2 import Jinja2Mixin
from tipfy.sessions import SessionMiddleware

class ChromeFrameMiddleware(object):
    """
    Middleware that enables the Google Chrome frame plugin or IE edge
    rendering engine.
    """
    def after_dispatch(self, handler, response):
        response.headers.add('X-UA-Compatible', 'IE=edge,chrome=1')
        return response

class SessionRequestHandler(RequestHandler, Jinja2Mixin):
    middleware = [ChromeFrameMiddleware(), SessionMiddleware()]