UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.68 Safari/537.36

Steps to reproduce the problem:
1. Create an extension with "webRequest" and "*://*/*" host permissions.
2. Add a listener to the "chrome.webRequest.onBeforeRequest" in extension's code and console.log() requests data.
3. Open youtube.com
4. Open chrome://net-internals/#events&q=type:QUIC_SESSION and compare what you see there with the developer tools/network tab
5. Open extension's background page and inspect the log there

What is the expected behavior?
1. All the requests sent over QUIC are captured by the listener

What went wrong?
It appears that some requests sent over QUIC are not exposed to the browser extensions.

Here is a thorough research on this:
https://blog.brave.com/quic-in-the-wild-for-google-ad-advantage/

Did this work before? No 

Does this work in other browsers? Yes

Chrome version: 58.0.3029.68  Channel: n/a
OS Version: OS X 10.12.5
Flash Version: