Extension Error: Unable to load page: failed document request (net::ERR_EMPTY

[SergerGood]

Lighthouse Version: 2.5.0
Lighthouse Commit: 55137f8
Chrome Version: 61.0.3163.100
Initial URL: https://localhost:3687/network-structure
Error Message: Unable to load page: failed document request (net::ERR_EMPTY_RESPONSE)
Stack Trace:

Error: Unable to load page: failed document request (net::ERR_EMPTY_RESPONSE)
    at Function.assertPageLoaded (chrome-extension://blipmdconlkpinefehnmjammfjpmpbjk/scripts/lighthouse-background.js:13597:21)
    at pass.then._ (chrome-extension://blipmdconlkpinefehnmjammfjpmpbjk/scripts/lighthouse-background.js:13704:20)
    at <anonymous>

[paulirish]

@SergerGood can you reproduce this? I don't think we know enough about why the page was empty.. This page loads for you?

We're gonna need your help to debug this one.

This is a dupe of #2646