Cordova InAppBrowser HTML5 Audio problem on iOS

I'm opening a HTML5 website or project that uses sound/audio may it be in form of video or some pictureless audio source. I use '_blank' and 'location=yes' as properties. While on android the sounds plays without problems and is correctly classified as media sound, on iOS there seems to be a bug there, since the hardware switch of the iPad mutes the sound, although it is only supposed to mute notification sounds. Additionally in other apps, all media is playing correctly, with hearable sound. Even if I open the HTML5 project in either Safari or Chrome, the audio plays correctly with muted notification sounds.Only in the cordova InAppBrowser it does not work correctly.
I'm basically addressing this issue: http://thenextweb.com/apple/2012/10/04/its-not-just-you-the-mute-toggle-of-your-iphone-works-different-on-ios-6/ only that the issue also occurs on iPads!