title: Set background-image to a blob: URI
body: <p>I have a background image stored in a BLOB, say <code>blob:http://lhost/3dbeb143-a618-46f3-8fa2-25f8dd477692</code>. </p>
  
  <p>I want to set the <code>background-image</code> property of an element to this blob.</p>
  
  <p>I tried setting it to <code>url("http://isequence/3dbeb143-a618-46f3-8fa2-25f8dd477692")</code> but it just says <code>isequence/3dbeb143-a618-46f3-8fa2-25f8dd477692: 404 Not Found</code>. Clearly it is trying to request that file literally through HTTP.</p>
  
  <p>So how do I go through with this? </p>