UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Steps to reproduce the problem:
1. add two gradient background
2. Set backgroud-attachment local to top one and scroll to second

What is the expected behavior?
The top gradient with background-attachment local must scroll when scroll down.

What went wrong?
The top gradient with background-attachment local stay fixed when scroll down.

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 63.0.3239.84  Channel: n/a
OS Version: OS X 10.13.2
Flash Version:
 

Deleted: background-attachment-test.html 1.4 KB

background-attachment-test.html 1.4 KB View Download