So I followed the sample extension at Customize the address autocomplete provider to build a custom address autocomplete extension for my Shopify store in Korea market.
I tested the extension at checkout and it doesn’t work for Korea as the shipping country: (The endpoint https://shopify.github.io/address-autocomplete/address-autocomplete.json is not called)
But when I changed the country to Singapore, it works correctly:
What am I missing here or the custom address autocomplete can not be integrated for South Korea?