UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36

Steps to reproduce the problem:
1. Create an extension that add a listener with chrome.webRequest.onBeforeRequest.addListener:
chrome.webRequest.onBeforeRequest.addListener(console.log, {urls: ["<all_urls>"], types:["main_frame"]},["blocking"])

2. declare <any_url> permission in manifest.json
3. load the extension
4. navigate to any url from the address bar.
5. notice the callback onBeforeRequest is not called.

What is the expected behavior?
The callback should be called when navigating to any url and the request should be logged in the background extension console.

What went wrong?
In chrome 63 on mac, this worked perfectly and the callback was properly called. 
This is also working as expected on chrome window 64 so it looks like it's only a regression on chrome mac. I haven't tested on chrome linux.

Did this work before? Yes 63

Does this work in other browsers? Yes

Chrome version: 64.0.3282.140  Channel: stable
OS Version: OS X 10.13.3
Flash Version: Shockwave Flash 28.0 r0