Chrome was intentionally made more interoperable with other browsers as well as the specification by using <html> (document.documentElement) as the default scrollable element rather than <body> (document.body) in standards mode (a page having <!DOCTYPE html>).
If your website has issues as a result, it usually means some code is detecting the browser (browser sniffing) rather than the feature (feature detection).
You can read one of the recent similar cases that was resolved by updating a badly-coded library on which the website depended -
If you fixed the issue following reading this information, it would be great if you reported back with the changes you made in order to fix it, so others could find your post and quickly resolve their issues as well.