Continuing the discussion from Indication that the user actually tweet (not just clicked on tweet):
The Same issue I am facing i.e. I want the callback when the user clicks tweet inside the popup.
What do we now? You guys changed the API functionality according to your needs but now we need verification from the Twitter side that POST is successfully done so that we should perform a further action like Saving details into DB etc.
You have any alternative i.e. any new event you created for Website after Nov 20, 2015 so that we came to know Post successfully done?