Check if image truncated
Based on a file format and trailing byte sequencies
HTML
<img id="pictureBad" />
<img id="pictureGood" />
<img id="picturePNG" />
JavaScript
var imageBad = document.getElementById('pictureBad');
var imageGood = document.getElementById('pictureGood');
var imagePng = document.getElementById('picturePNG');
imageBad.src =...