So now, I had to find a solution where only the whitelisted
  properties are used but in the it was fairly simple.
  
  I used the padding, line-height and font-size properties. I
  set the padding on the left and right to half the width and
  the top and bottom to the half the height of the image. I
  then set the font-size to 1px to ensure it doesn't distort
  the width. Since padding on an inline element has no effect
  on it's dimensions, I used the line-height to manually set
  the height and that displayed the images.

  console.image("data:image/png;base64,...");