we can not forward/backward recorded video . about chrome-extensions HOT 3 OPEN

var blobs = [];
var recorder = RecordRTC(screenOrCamera, {
     type: 'video',
     timeSlice: 1000,
     ondataavailable: function(blob) {
           blobs.push(blob);
     }
});

recorder.stopRecording(function() {
    var singleBlob = new File(blobs, 'video.webm', {
         type: 'video/webm'
    });
    videoPreview.src = URL.createObjectURL(singleBlob);
});