Extension Error: Cannot attach to this target.

[td1013]

Lighthouse Version: 3.2.1
Lighthouse Commit: 3c03e2c
Chrome Version: 69.0.3497.95
Initial URL: https://www.google.com/_/chrome/newtab?rlz=1CASMAI_enUS801US802&ie=UTF-8
Error Message: Cannot attach to this target.
Stack Trace:

Error: Cannot attach to this target.
    at Object.chrome.debugger.attach [as callback] (chrome-extension://blipmdconlkpinefehnmjammfjpmpbjk/scripts/lighthouse-ext-background.js:18089:15)
    at safeCallbackApply (extensions::uncaught_exception_handler:27:15)
    at handleResponse (extensions::sendRequest:67:7)

[patrickhulce]

@wardpeet think this was the offline dino problem back again? I don't remember the resolution on that :)

[wardpeet]

@patrickhulce looks a lot like it.

marking it as a duplicate of #5798