facebook post to wall dialog is empty

Question

I'm having a weird problem with fb sdk for iphone. It was working all fine till yesterday. I started getting an empty fb dialog when trying to post to wall. If I click Publish, it publishes fine, but the preview is not visible! Tried uninstalling the app, also reauthorizing in fb and nothing... Any idea?

Answer 1

Having same issue: please add your votes and comments to http://bugs.developers.facebook.net/show_bug.cgi?id=18760

this will help speed up the process

Answer 2

Ok, I have figured some things out but I don't know if that helps anybody.

There is a delegate method in FBDialog.m

- (BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request
  navigationType:(UIWebViewNavigationType)navigationType

This method is called when the webview inside the facebook view is loaded. If I load the content of the url of the request like that...

NSString *source = [NSString stringWithContentsOfURL:request.URL];

... log the source variable, copy the content inside a html document and load it with my Firefox or Safari Browser on my mac it shows up a dialog. That means, that the there is a dialog but the webview can't show it or something like that.

The second thing I figured out, if you look further down in the method you see that there is a condition:

if ([url.scheme isEqualToString:@"fbconnect"])

if I log url.scheme it gives me "https" which I guess is wrong. I wonder if that shouldn't be "fbconnect" ?! If that should be the problem I guess we can't fix the problem ourselves, since that is something Facebook need to fix.

I hope this information is at least a bit useful for you guys and I hope this bug is getting fixed soon!

Cheers, Raphael ;)