javascript - 如何获取canvas iframe应用程序当前的Facebook页面ID？

Question

我有一个 Rails 应用程序，它在页面的 Canvas 应用程序的 iframe 中运行。

我需要做的是获取当前页面 ID 并传递给 iframe。

基本上尝试让 iframe 根据应用程序设置的页面显示 X。

Answer 1

如 Page Tab Tutorial 中所述:

When a user selects your Page Tab, you will receive the signed_request parameter with one additional parameter, page. This parameter contains a JSON object with an id (the page id of the current page), admin (if the user is a admin of the page), and liked (if the user has liked the page). As with a Canvas Page, you will not receive all the user information accessible to your app in the signed_request until the user authorizes your app.