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iosfacebookipadhtmlfacebook-comments

Not redirecting to Facebook comments in UIWebView after login

I am adding facebook comments to my iPad application using UIWebView and HTML5 code provided by Facebook. When the user is not logged in, the application shows the comments and button "Login to Facebook to Post a Comment".

Comments initial window

Clicking the button takes me through login process. After the login completes the view is redirected with an empty page with "Login complete" message. It is not redirected back to the comments dialog.

enter image description here

Right now I implemented an ugly workaround. Upon receiving webViewDidFinishLoad event, I look at contents of the page and reload it if the page shows this message. Though, it does not seem a clean way to go.

Why doesn't Facebook redirect me back to original comments page?

Solution

  • I suspect the problem you're having is related to this issue: Facebook authentication in a UIWebView does not redirect back to original page on my site asking for auth

    Specifically, the standard Facebook web login process launches a new browser window dialog, and dispatches a message back to the opener to indicate login success for the redirect to occur.

    Quoting a passage in the linked SO, "UIWebView doesn't support multiple windows so it can't postMessage back to your original page since it's no longer loaded."