I have searched the interwebs for a way to get around the Mixed Content Blocking (i.e. serving a HTTPS site and requesting HTTP content).
The only option I have seen (also recommended by Google) is to find a resource / API that serves HTTPS content instead of HTTP.
Due to Mixed Content Blocking, you’ll need to allow your browser to load scripts.
I’d appreciate your feedback
UPDATE (10 September '16):
I re-wrote my local weather app using Yahoo Weather API (it supports HTTPS) therefore no more issues with Mixed Content Blocking.