return "not supported" if user has denied notifications
return "not supported" if user has denied notifications

Shopify/shipit-engine,ershad/shipit-engine,Shopify/shipit-engine,ershad/shipit-engine,perobertson/shipit-engine,perobertson/shipit-engine,Shopify/shipit-engine,perobertson/shipit-engine,Shopify/shipit-engine,ershad/shipit-engine,Shopify/shipit-engine,ershad/shipit-engine,perobertson/shipit-engine,perobertson/shipit-engine,ershad/shipit-engine