Re: Something it´s going bad with SAPUI5 says "Hello OData" to NetWeaver Gateway

Did you try debugging the Application in Chrome 's Console (Ctrl + Shift + I ) ?

and to resolve the "Same Origin Policy " try disabling the chrome Security in either of the below ways suggested

1) close all running browser services and Open Run command (Windows key + R ) and type 

chrome.exe --user-data-dir="c:/temp/chromedev" --disable-web-security  to open a new chrome window with Security Disabled

2) Right-click > properties > Shortcut
Edit "target" path :

"C:\Program Files\Google\Chrome\Application\chrome.exe" --args --disable-web-security

Once Security is disabled try running the same application again and debug the Chrome s Console.