html5 get ctrl + v image

paste image

paste = (e) => {
  var file, remoteImages;
  if (typeof e.clipboardData.types === 'undefined' || e.clipboardData.types.length === 0 || e.clipboardData.types[0] !== 'Files') {
      return;
  }

  file = e.clipboardData.items[0].getAsFile();
  render(file);
  
  e.stopPropagation();
  e.preventDefault();
}

render = (file) => {
  var reader = new FileReader();
  reader.onload = function(e) {
    post(e.target.result)   // `e.target.result` is image base64 string
  }
  reader.readAsDataURL(file);
}


body.addEventListener('paste', paste, false);