Vertical Scroll Overflow on Mobile

Hello,

I am having an issue that I cannot seem to fix and would appreciate any help. My squarespace site has a globally black background. When viewing it on mobile (iphone) and scrolling up past the contents of the website to trigger a website refresh, or even when simply scrolling down past the bottom contents of the webpage, the deadspace that appears is white instead of black. I am attempting to change the color of this overflow to black to match the background color, or if possible, would even like to simply disable the overflow that occurs when scrolling too far.

Thank you for your time

Hi,

Can you share link to page where you have problem? We can check easier

Any solution to this?? Ridiculous squarespace has not provided a solution 

I am, too, still looking for a solution.  Anybody?