Any working examples of $cordovaGeolocation.watchPosition?

I succeed with $cordovaGeolocation.getLocation in the browser (and on my Galaxy S5), but I fail in my efforts with $cordovaGeolocation.watchPosition on the browser. Specifically, I would expect one of the watchPosition callbacks to fire every frequency interval, but I get nothing.

Can any reader link to an ionic $cordovaGeolocation.watchPosition example or recommend how to position the example code from in an ionic app to ensure proper functioning of $cordovaGeolocation.watchPosition ?


G Gator