title: CORS error for large files
body: <p>While smaller files are uploading ok, sizes larger than 200Mb give the following CORS error:</p>
  
  <pre><code>XMLHttpRequest cannot load https://www.filepicker.io/api/store/S3?key=Ad9Izd38AQzaNycUe6r4Qz&amp;filename=…t_1Gb.fastq.gz&amp;path=uploads/331/test_1Gb.fastq.gz&amp;_cacheBust=1368071391844. Origin http://127.0.0.1 is not allowed by Access-Control-Allow-Origin.
  </code></pre>
  
  <p>I have the IAM policy set as specified by filepicker documentation.</p>