Interaction of cordova 5 functions with loaded site, how?

Question

JavaScript

onDeviceReady: function() {
            var ref = cordova.InAppBrowser.open('http://site.ru', '_blank', 'location=no');
            ref.addEventListener('loadstart', function(event) {
                ref.executeScript({ code: "window.isCordovaApp=true;" });
            });
        };
        function getImage() {
            anyCordovaPlugin();
            alert('aby action');
        }

...
In http://site.ru itself:

<button onclick="getImage();">Upload a Photo</button>

Does not work.
How to call the functions of a plugin in Cordova inside a loaded site?

Answer 1

Probably not.