title: Does prefix 'data:image/png;base64,' of base64 affect to displaying image?
body: <p>I am using AngularJS. I display my image as: src="data:image/png;base64,iVBORw0KG..." successfully.
  When I change 'png' to jpeg, gif or jpg, nothing happened. It still displays correctly. 
  So I want to ask you the prefix affect to displaying image or not? Negative or positive?</p>
  
  <p>Moreover, I receive data image from server without any prefix. So I have to set a hardcode 'data:image/png;base64,'. This is good or bad? 
  Could you pls help me? Thanks so much. :)</p>