This wiki explains the process how the index.html of Fiori application is served by UI5 resource handler.
The url of index looks like below:
https://:/sap/bc/ui5_ui5/sap/zfiori150320/index.html?sap-client=001&sap-ui-language=EN&sap-ui-appcache=false
entry point:
final url is populated:summary: the application zfiori150320 is directly created in WebIDE and deployed to netweaver server.