title: Failed to construct 'Blob': The 1st argument provided is either null, or an invalid Array object.
body: <p>I started using filesaver.js today.I have created the following function:</p>
  
  <pre><code>function saving(){
      var blob = new Blob(final_transformation, {type: "text/plain;charset=utf-8"});
  saveAs(blob, "hello world.txt");
  }
  </code></pre>
  
  <p>but when i call that function i get"Failed to construct 'Blob': The 1st argument provided is either null, or an invalid Array object. "
  Any ideas?</p>