UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0

Steps to reproduce the problem:
Just type navigator.connection in console on a desktop version of Chrome. 
As of now, the 'effectiveType' is returned but 'type' is not returned. The specification is here: http://wicg.github.io/netinfo/#underlying-connection-technology

What is the expected behavior?
The 'type' should be returned.

What went wrong?
The 'type' is not returned. 

Did this work before? No 

Does this work in other browsers? No
 FF does not even support it on desktops... Guess moving back to Chrome.

Chrome version: 66.0.3359.181 (Official Build) (64-bit) (cohort: Stable)  Channel: stable
OS Version: 10
Flash Version: 

In countries like India and Pakistan most of the people who use laptops on wifi are on a limited data connection. Those who use ethernet are on homebroadband on unlimited connection. This assumption is true above 80% of the time, however may not be true in western world. 

I'm making a PWA, and as a part of functionality, it fetches images, videos, stylesheet and other assets based on screen resolution and internet speed. This helps in deciding what would be a better choice to reduce data consumption for the end user. The users are given option to override it in PWA settings, but most dont bother and say that it takes long to load. So this is helpful on desktops/laptops.