Service worker not checking properly for local development server?

[bogdancondurache]

Looking at the provided service-worker.js I see the dev server requests are ignored like this:
if (url.hostname === self.location.hostname && url.port !== self.location.port) return;

My question is, doesn't this actually process the dev server requests and should be like:

if (url.hostname === self.location.hostname && url.port === self.location.port) return;