Make urls in trooper-o-matic alert json https.
Make urls in trooper-o-matic alert json https.

That way https pages (e.g. sheriff-o-matic) can iframe the alerts.

Review URL: https://codereview.chromium.org/625373002

nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra,nicko96/Chrome-Infra