title: Chrome extensions support copy image to clipboard?
body: <p>I search in goggle and didn't find any answer.
  The new clipboard API support copy image to clipboard by using <code>document.exec command</code>.
  If yes, How can I copy image <code>data url</code> to clipboard as image?</p>
  
  <p>I am the developer of Webpage Screenshot extension and I search for a way to copy the image to clipboard.
  I also search for a way to open the image with specific software.</p>