title: How to give a Blob uploaded as FormData a file name?
body: <p>I am currently uploading images pasted from the clipboard with the following code:</p>
  
  <pre><code>// Turns out getAsFile will return a blob, not a file
  var blob = event.clipboardData.items[0].getAsFile(), 
      form = new FormData(),
      request = new XMLHttpRequest();
  form.append("blob",blob);
  request.open(
              "POST",
              "/upload",
              true
          );
  request.send(form);
  </code></pre>
  
  <p>Turns out the uploaded form field with receive a name similar to this: Blob157fce71535b4f93ba92ac6053d81e3a</p>
  
  <p>Is there any way to set this or receive this file name client side, without doing any server side communication?</p>