Extension Error: Cannot access contents of the page. Extension manifest must

[pgsgoossens]

Lighthouse Version: 2.1.0
Chrome Version: 61.0.3132.0
Initial URL: view-source:chrome-extension://akdgnmcogleenhbclghghlkkdndkjdjc/linkinfo.html?id=e8b97e2a876941dc590bce68bd81e921
Error Message: Cannot access contents of the page. Extension manifest must request permission to access the respective host.
Stack Trace:

Error: Cannot access contents of the page. Extension manifest must request permission to access the respective host.
    at Object.chrome.debugger.attach._ [as callback] (chrome-extension://blipmdconlkpinefehnmjammfjpmpbjk/scripts/lighthouse-background.js:9837:15)
    at safeCallbackApply (extensions::uncaught_exception_handler:27:15)
    at handleResponse (extensions::sendRequest:67:7)

[wardpeet]

@pgsgoossens can you tell us how you got to this url:
view-source:chrome-extension://akdgnmcogleenhbclghghlkkdndkjdjc/linkinfo.html?id=e8b97e2a876941dc590bce68bd81e921.

We only support real urls.