I keep seeing the facebook logo with a link that reads “Go to Facebook.com” in my canvas app while screens are loading. Eventually the app loads fine, but what is this and how can I avoid it?
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I keep seeing the facebook logo with a link that reads “Go to Facebook.com” in my canvas app while screens are loading. Eventually the app loads fine, but what is this and how can I avoid it?
It’s there because you are doing a “frame level” redirect when you are jumping to Facebook for authentication (i.e. you are using something like
header('Location:xyz')in PHP orlocation.href=xyzin javascript). You need to do a page-level redirect, which is why the doc sample code usestop.location=xyzjavascript calls. Because you are not breaking out of the iframe, Facebook is putting up the intermediate link screen to do it for you.