Rails facebook app返回422“你想要的改变被拒绝“错误 [英] Rails facebook app returns 422 " the change u wanted was rejected" error

问题描述

我的Facebook今天刚获得批准。然而，当我点击转到应用程序时，它返回Rail 422你想要的更改被拒绝错误我将我的画布URL设置到我的网站的URL，我正在使用Omniauth，所以我只是想知道我错过了什么

My facebook is just approved today. However,when I clicked on "Go to app", it returns Rail 422 " The change you wanted was rejected. error" I set my Canvas URL to my site url and I am using Omniauth, so I am just wondering what did I miss.

推荐答案

尝试删除

protect_from_forgery

在application_controller中，或

In the application_controller, or

# you can disable csrf protection on controller-by-controller basis:
skip_before_filter :verify_authenticity_token

Facebook使用signed_request，您可以解码并使用它来确认请求实际来自Facebook，所以protect_from_forgery对于只能通过Facebook画布访问的应用程序是不必要的。

Facebook uses signed_request that you can decode and use to verify that the request actually comes from facebook, so protect_from_forgery is unnecessary for applications that are accessible through the facebook canvas only.

更多信息：帆布验证& ActionController :: RequestForgeryProtection

More here: Canvas Authentication & ActionController::RequestForgeryProtection

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