Solved: is not possible to export any file

[xhublist]

Hello, there is some setting to put inside files about the export? Because i have take the files put into my server and work all except the exportation in both file type extensions.

into developer tools i read also this :

wavesurfer.js:5760 The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page. https://goo.gl/7K7WLu
wavesurfer.js:5976 [Deprecation] The ScriptProcessorNode is deprecated. Use AudioWorkletNode instead. (https://bit.ly/audio-worklet)
actions.js:9 [Deprecation] The ScriptProcessorNode is deprecated. Use AudioWorkletNode instead. (https://bit.ly/audio-worklet)



[xhublist]

i have solved byself function DownloadFile( with_name, format, kbps, selection, stereo, callback ) {
if (wavesurfer && wavesurfer.backend && wavesurfer.backend.buffer){}
else {
return false;
}

		if (format === 'mp3') {
			worker = new Worker('/HERE PUT THE PATH ABSOLUTE/lame.js');
		}
		else {
			worker = new Worker('/HERE PUT THE PATH ABSOLUTE/wav.js');
		}

		var originalBuffer = wavesurfer.backend.buffer;
		var sample_rate = originalBuffer.sampleRate;

		var channels = originalBuffer.numberOfChannels;

		var data_left = originalBuffer.getChannelData ( 0 );
		var data_right = null;
		if (channels === 2)
			data_right = originalBuffer.getChannelData ( 1 );

		if (!stereo && channels === 2)
		{
			if (!wavesurfer.ActiveChannels[0] && wavesurfer.ActiveChannels[1])
			{
				data_left  = originalBuffer.getChannelData ( 1 );
				data_right = null;
				channels   = 1;
			}
		}

		if (stereo && !data_right)
		{
			data_right = data_left;
			channels   = 2;
		}
		else if (!stereo && data_right)
		{
			data_right = null;
			channels   = 1;
		}

		var len = data_left.length, i = 0;
		var offset = 0;

		if (selection)
		{
			offset = (selection[0] * sample_rate) >> 0;
			len = ((selection[1] * sample_rate) >> 0) - offset;
		}

		var dataAsInt16ArrayLeft = new Int16Array(len);
		var dataAsInt16ArrayRight = null;


		if (data_right)
		{
			dataAsInt16ArrayRight = new Int16Array(len);

			while(i < len) {
				dataAsInt16ArrayLeft[i] = convert(data_left[offset + i]);
			 	dataAsInt16ArrayRight[i] = convert(data_right[offset + i]);
			 	++i;
			}
		}
		else
		{
			while(i < len) {
				dataAsInt16ArrayLeft[i] = convert(data_left[offset + i]);
			 	++i;
			}
		}
		function convert ( n ) {
			 var v = n < 0 ? n * 32768 : n * 32767;       // convert in range [-32768, 32767]
			 return Math.max(-32768, Math.min(32768, v)); // clamp
		}

		worker.onmessage = function( ev ) {
			if (ev.data.percentage)
			{
				callback && callback ( ev.data.percentage );
				return ;
			}
			forceDownload( ev.data );

			worker.terminate ();
			worker = null;
		}

		worker.postMessage ({
			sample_rate: sample_rate,
			kbps:!kbps ? 128 : kbps,
			channels: channels
		});
		worker.postMessage ( dataAsInt16ArrayLeft.buffer, [dataAsInt16ArrayLeft.buffer] );
		if (data_right)
			worker.postMessage ( dataAsInt16ArrayRight.buffer, [dataAsInt16ArrayRight.buffer] );
		else
			worker.postMessage (null);

		// function forceDownload ( mp3Data ) {
		// 	var blob = new Blob (mp3Data, {type:'audio/mp3'});
		function forceDownload ( blob ) {			
			var url = (window.URL || window.webkitURL).createObjectURL(blob);

			var a = document.createElement( 'a' );
			a.href = url;
			a.download = with_name ? with_name : 'output.mp3';
			a.style.display = 'none';
			document.body.appendChild( a );
			a.click();

			callback && callback ('done');
		}
	}

the problem is in actions.js in this function and in details here : if (format === 'mp3') {
worker = new Worker('/HERE PUT THE PATH ABSOLUTE/lame.js');
}
else {
worker = new Worker('/HERE PUT THE PATH ABSOLUTE/wav.js');
}