title: Create Javascript File/Blob object from image URI
body: <p>Is it possible to create a File or Blob object for my image out of an image URI?</p>
  
  <p>Using Cordova Image Picker, a plugin on my mobile app, I can retrieve photo URI's that look like this: "file:///data/user/0/..../image.jpg"</p>
  
  <p>However, I am now trying to create a File or Blob object which Google Firebase requires for my images to be uploaded. I just can't figure out how. Every solution I try seems to be wrong to the point where I think I'm looking at it from a complete wrong perspective. I'm new to Javascript. Thanks a lot!</p>