I am integrating the Facebook Api in my apps.
Always works fine since some days ago that always ask my users type a captcha before post.
Has anybody any idea why it happens now?

For open the dialog, I use:
[delegate.facebook dialog:@"stream.publish"
andParams:params
andDelegate:delegate];
Thnks
This is almost certainly related to the specific link you’re sharing, it’s most likely because the domain you’re sharing the links on is being reported as spam or is a redirector or URL shortening service
There’s no way to prevent it, but if you’re sharing links to a well-known redirector, maybe try hosting the content on your own domain instead