title: Image file size from data URI in JavaScript
body: <p>I am not sure it's even possible but - can I get the image file size from data URI?</p>
  
  <p>For example, let's say there is an IMG element where <code>src</code> goes:</p>
  
  <pre><code>src="data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD...
  </code></pre>
  
  <p>Based on the <code>src</code>, can I get the image file size by using plain JavaScript? (without server request)</p>