UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Example URL:
https://report-uri.io/home/sri_hash

Steps to reproduce the problem:
1. Disable cache
2. Open Network Tab in inspector
3. Look at the CSS files being requested

What is the expected behavior?
The CSS is requested once

What went wrong?
CSS files with an integrity attribute are requested twice.

Did this work before? N/A 

Chrome version: 56.0.2924.87  Channel: stable
OS Version: OS X 10.12.3
Flash Version: Shockwave Flash 24.0 r0

Found a related issue for JS: https://bugs.chromium.org/p/chromium/issues/detail?id=573269