Before following the guide, disable adblocker and preferably use chrome browser to avoid issues.
STEP 1
Click on the top link of the post you want the see the leak off.
For example:
STEP 2
Enter the site and complete the task given by simply entering the page given and waiting for 20-40 seconds. (the task can be a bit different, just read the task)
STEP 3
If done correctly, it should turn green. Now press the "Done" button.
LAST STEP
Press the green "click here to open the link" and you should be able to see the full leak..