<div class="progress-bar is-invisible">
  <div class="progress-fill"></div>
</div>
<form class="file-chooser" action="/transcripts/upload"
                          method="post" enctype="multipart/form-data">
  <input type="file" class="file-input" name="transcript-file"
    accept="<%= _.map(ext, function(val){ return '.' + val; }).join(', ') %>">
  <input type="hidden" name="locator" value="<%= component_locator %>">
  <input type="hidden" name="video_list" value='<%= JSON.stringify(video_list) %>'>
</form>
