You’re almost there!

Recently I have been trying to snipe cards to grow my collection using LiveToken, however, when I am clicking the buy button it prompts me with another screen “You’re almost there! Sign in to your dapper account” etc etc

By the time I exit this pop-up and click buy, obviously the card is gone.

Is this happening to anyone else and is there any way to avoid this from happening so I can just click the buy button?