Don't include initial http route on HTTPS audits

[evenstensberg]

Tested this on an Google Pixel XL. Seems like the initial HTTP route gets audited instead of us redirecting to HTTPS if possible and auditing that.

[patrickhulce]

@ev1stensberg could you be more specific? if you test an http url explicitly then failing these audits is expected even if it redirects to https, we could add a debug string similar to https://github.com/GoogleChrome/lighthouse/blob/master/lighthouse-core/audits/works-offline.js#L47 for these though

[evenstensberg]

I'd expect that we should try to audit the https if it's standard. If you're a pragmatic tester, you'd use a http protocol to ensure you get feedback. At least, that is how I'd think

[ebidel]

+1 on the debug string like https://github.com/GoogleChrome/lighthouse/blob/master/lighthouse-core/audits/works-offline.js#L47. This is one of those gotchas that you only run into when using the CLI. When using the extension/DevTools, you'll already be at the redirected URL.

[brendankenny]

closing in favor of #1917