Both urls may be opened on an Android device if they are opened by a browser. The failure occurs when the urls are opened in a java app (only one will open on my system in Android mode; neither will open in Java mode on my system). According to this reference (second answer) that is a feature of java apps: https://stackoverflow.com/questions/32306509/server-returned-http-response-code-401-for-url-when-using-shopify-api .
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