I added the following meta to my html file, it works fine if the app-id is the AppStore app id, but the banner does not show up if I replace it with own app id. This only happen on an iPhone 4s with iOS7.1. Both work fine on my iPhone 5 with iOS7.1.
Is it a bug for iPhone 4s with iOS7.1 ?
<meta name="apple-itunes-app" content="app-id=xxxxxxxxx"/>