title: Send canvas image data (Uint8ClampedArray) to Flask Server via Ajax
body: <p>I'd like to send image data on an HTML5  to a flask server back-end via AJAX. I extract the relevant image data from the  using <code>context.getImageData(a, b, c, d)</code>, and would ideally like to have access to that data as a numpy array on my flask backend. How might I best go about this?</p>
  
  <p>Thanks!</p>