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我试图让FB应用程序显示在Facebook的应用程序页面上，但iFrame只是空白。该应用完美地在localhost和appspot上运行，但是当它加载到facebook里面时什么也没有发生。在应用引擎上显示为空白页面的Facebook应用程序iframe
如果我查看iframe的来源，什么都没有出现，但如果我刷新此页面，所有的代码显示正常？
我试过沙盒或关闭，并有两个独立的应用程序设置本地主机和appspot。两者都做同样的事情。
这是我主要的应用程序代码
import cgi
import datetime
import urllib
import wsgiref.handlers
import os
import facebook
import os.path
from google.appengine.ext import db
from google.appengine.api import users
from google.appengine.ext import webapp
from google.appengine.ext.webapp import util
from google.appengine.ext.webapp import template
from google.appengine.ext.webapp.util import run_wsgi_app
#local
FACEBOOK_APP_ID = "----------------"
FACEBOOK_APP_SECRET = "---------------"
#live
#FACEBOOK_APP_ID = "--------"
#FACEBOOK_APP_SECRET = "--------------"
class User(db.Model):
id = db.StringProperty(required=True)
created = db.DateTimeProperty(auto_now_add=True)
updated = db.DateTimeProperty(auto_now=True)
name = db.StringProperty(required=True)
location = db.StringProperty(required=False)
profile_url = db.StringProperty(required=True)
access_token = db.StringProperty(required=True)
user_has_logged_in = db.BooleanProperty(required=True)
class PageModel:
def __init__(self, user, friends):
self.user = user
self.friends = friends
#self.length = self.friends['data'].__len__()
class BaseHandler(webapp.RequestHandler):
"""Provides access to the active Facebook user in self.current_user
The property is lazy-loaded on first access, using the cookie saved
by the Facebook JavaScript SDK to determine the user ID of the active
user. See http://developers.facebook.com/docs/authentication/ for
more information.
"""
@property
def current_user(self):
if not hasattr(self, "_current_user"):
self._current_user = None
cookie = facebook.get_user_from_cookie(
self.request.cookies, FACEBOOK_APP_ID, FACEBOOK_APP_SECRET)
#if logged in
if cookie:
# get user from db
user = User.get_by_key_name(cookie["uid"])
# Store a local instance of the user data so we don't need
# a round-trip to Facebook on every request
if not user:
graph = facebook.GraphAPI(cookie["access_token"])
profile = graph.get_object("me")
user = User(key_name=str(profile["id"]),
id=str(profile["id"]),
name=profile["name"],
location=profile["location"]["name"],
profile_url=profile["link"],
access_token=cookie["access_token"],
user_has_logged_in = True)
user.put()
#else if we do have a user, but their cookie access token
#is out of date in the db, update it
elif user.access_token != cookie["access_token"]:
user.access_token = cookie["access_token"]
user.put()
self._current_user = user
#user = facebook.get_user_from_cookie(self.request.cookies, FACEBOOK_APP_ID, FACEBOOK_APP_SECRET)
friends = "chris"
pageModel = PageModel(self._current_user, friends)
return pageModel
return self._current_user
class Index(BaseHandler):
def get(self):
path = os.path.join(os.path.dirname(__file__), "index.html")
#args = dict(current_user=self.current_user,
# facebook_app_id=FACEBOOK_APP_ID)
args = dict(pageModel=self.current_user,
facebook_app_id=FACEBOOK_APP_ID)
self.response.out.write(template.render(path, args))
application = webapp.WSGIApplication([
('/', Index),
('/savemyaddress', SaveMyAddress)
], debug=True)
def main():
run_wsgi_app(application)
#util.run_wsgi_app(webapp.WSGIApplication([(r"/", HomeHandler)], debug=True))
if __name__ == '__main__':
main()
和主页
<script>
window.fbAsyncInit = function() {
FB.init({appId: '{{ facebook_app_id }}',
status: true,
cookie: true,
xfbml: true});
FB.Event.subscribe('{% if pageModel.user %}auth.logout{% else %}auth.login{% endif %}', function(response) {
window.location.reload();
});
};
(function() {
var e = document.createElement('script');
e.type = 'text/javascript';
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
</script>