I am looking at am application I signed up for. They have an area in the profile to share your profile on facebook.
The application also has a profile percentage complete side bar showing all the parts of the profile with an x for those missing and a check for those already completed.
Next to the share profile on facebook there was a red x as I had not done it. Then I clicked the button to share on facebook and a i-frame or a popup came in view with the share on facebook dialogue.
At this point the red x still was present as I had not pressed Share to actually share the profile. However, 2 seconds after I pressed share to share the profile on facebook the red x was replaced with the check mark.
How is it possible to detect that I actually shared the profile? My first thought was they would simply gauge if I pressed the button on the profile page to open the share i-frame or popup, but that is not what happened. The application was actually able to verify I had shared it. How could this be done?