Compile Error

[TheodoredaCunha]

My code is:
`function saveVideo(){
recorder = new Whammy.Video(FrameRate.value);
for(var i = 0; i <= images_array.length - 1; i++){
recorder.add(images_array[i]);
}
console.log(recorder);
var output = recorder.compile(function(blob){
return blob;
});

}`

When I was trying to compile, an error :

RecordRTC.js:4343 Uncaught DOMException: Failed to execute 'postMessage' on 'Worker': function(){return 0<arguments.length?(this.elt.value=arguments[0],this):"range"===this.elt.type?parseFloat(this......e} could not be cloned.

Can anybody help me tell what to do ??