That is not that correct path forward. There is another question that you need to look at with your client. Just wrapping a website in Cordova/PhoneGap will usually get rejected by Apple for approval into the App Store. It really needs to be an app, just adding Camera functionality to the site may not cut it. With that said, you will need to take the website and extend it with the code to access the Camera.
I don’t completely understand your answer. Currently I’m hoping to get my situation working and figure out what to do with the appstore at a later stage in the project. Can you tell me if it is possible what I’m looking to do or not and if yes how?
I would like to add that dominos pizza has a similar app in the Dutch Appstore that only loads a website, but also features push notifications. So maybe Apple has become more flexible?
The answer is basically no. The content within the InAppBrowser is sandboxed from the other web content/app. It can not directly interact with other plugins. I am not sure if the IAB supports the HTML 5 Camera functionality, I doubt it. You are taking the wrong approach to using Cordova. It is not about taking your web content and making an app, it is meant to let you use web technology to create an app.
Apple has actually become tighter in their restrictions on what an 'app' is. Without knowing how the Domino's app was built, I would suspect that the app calls the CMS and renders the content within the app. Thus the app and web experiences and stay aligned.
PS: Also, "figuring it out later" is going to cause a lot of heartache and frustration.
Like I said I’m not using the IAB, I’m using the webview. No difference in that what using plugins concerns?