Cordova camera plugin : FILE_URI option return base64 string

[s@d]

Help me please. I'm new in Cordova and I have an application using cordova-camera-plugin to take pictures. In camera options i specified destinationType : Camrera.DestinationType.FILE_URI but it still returning a base64 string when i do a console.log

var app = {
    setOptions : function(srcType, hei, wid ) {
        var options = {
            quality: 50,
            targetHeight: hei,
            targetWidth: wid,
            destinationType: Camera.DestinationType.FILE_URI,
            sourceType: srcType,
            encodingType: Camera.EncodingType.JPEG,
            mediaType: Camera.MediaType.PICTURE,
            correctOrientation: true 
        }
        return options;
    },
    cameraSuccess : function(photo){
        console.log(photo);
        var imgcontainer = document.createElement('div');
        imgcontainer.style.width = "98%";
        imgcontainer.style.padding = "5px 10px";
        var newimg = document.createElement('img');
        newimg.style.margin = "0 auto";
        console.log(photo);
        newimg.style.margin = "3px";
        newimg.style.boxShadow = "3px 3px 5px grey";
        newimg.style.width = "100%";
        newimg.style.borderRadius = "3px";
        newimg.src="data:image/jpeg;base64, "+photo;
        //newimg.src=photo;
        imgcontainer.appendChild(newimg);
        document.querySelector("#an-photos div").appendChild(imgcontainer);
    },
    cameraError : function(photo){
            
        app.navigator.camera.cleanup();
    }
}

document.querySelector("ons-button#pub-add-photos").addEventListener("click", function(){
    navigator.camera.getPicture(app.cameraSuccess, app.cameraError, app.setOptions(Camera.PictureSourceType.CAMERA,150, 200 ));
});