Share Button - Invisible iframe 1000px

Hi Guys,

I am suddenly experiencing an invisible iframe which has a 1000px width & 1000px height on all the our sites that make use of Share Button.

This makes it impossible to select text for 1000px below the button.

Here are examples of sites which are experiencing this problem.

Is anybody else experiencing the same issue?

Do you guys have a solution for the problem?

Any assistance will be greatly appreciated.