test:

src/jensen.js

@@ -733,6 +733,8 @@ Jensen.prototype.getFile = async function (filename, length, ondata, onprogress)
         if (msg != null) {
             flen += msg.body.length || msg.body.byteLength;
             ondata(msg.body);
+            Logger.info('jensen', 'getFile length', length, flen)
+            removeAudio();
             if (flen >= length) {
                 document.removeEventListener('visibilitychange', visibilitychange);
                 Logger.info('jensen', 'getFile','file download finish.')