Here is what the documentation for ionic-cli says about Serving an Alternative Root Document
If you want to test your application in a browser and you use a folder other than the default www, you can specify this folder in the ionic.project file.
Example:
{ "name": "SmoothRiders", "gulpStartupTasks": [ "watch" ], "documentRoot": "app", "watchPatterns": [ "app/js/*", "!app/css/**/*" ] }
Vlad Bezden
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