原文：http://librelist.com/browser/flask/2011/8/8/add-no-cache-to-response/#952cc027cf22800312168250e59bade4
Method 1:
@app.route('/nocache')
def something_not_cached():
resp = make_response(render_template(...))
resp.cache_control.no_cache = True
return resp
Or you write a decorator:
@app.route('/nocache')
@nocache
def something_not_cached():
return render_template(...)
And here is the decorator:
from flask import make_response
from functools import update_wrapper
def nocache(f):
def new_func(*args, **kwargs):
resp = make_response(f(*args, **kwargs))
resp.cache_control.no_cache = True
return resp
return update_wrapper(new_func, f)
resp.cache_control is an accessor for the Cache-Control header, you can
also modify the header directly:
resp.headers['Cache-Control'] = 'no-cache'
