Instantiate File object in Microsoft Edge : <p>I'm trying to create an image file from a blob-object using the <a href="http://caniuse.com/#feat=fileapi" rel="noreferrer">File API</a> and then add it to a form to be sent via XHR. Works like a charm in chrome, but crashes the app in Microsoft Edge.</p>

<pre><code>let file = new File([blobContent], "image.png");

let form = new FormData();
form.append("file", file);
</code></pre>

<p>Are there any alternatives to the File API or workarounds to attach a file to the form? If I just add the blob to the form it's not recognized as an image.</p>

<p>Thanks!</p>
