UserAgent: Mozilla/5.0 (X11; CrOS x86_64 11151.61.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36

Example URL:
https://travis-ci.org/pyca/cryptography/jobs/479661008

Steps to reproduce the problem:
1. Go to https://travis-ci.org/pyca/cryptography/jobs/479661008
2. Wait for it to mostly render -- observe that you cannot do things like highlight text
3. Change tab
4. Change back

What is the expected behavior?
You get the page rendered

What went wrong?
The content area is blank.

Does it occur on multiple sites: N/A

Is it a problem with a plugin? No 

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 71.0.3578.98  Channel: stable
OS Version: 11151.61.0
Flash Version: