loading single frame gif cause JavaScript engine to hang

[lain-d]

Loading a single frame gif causes the page to become completely unresponsive and for it to crash

[zzuzsj]

[raihara3]

I had the same problem.
So I made changes to the library.
Download "gifler.bundle.js" and make the following changes will improve the situation.

Gif.prototype.animate = function(selector) {
  var canvas;
  canvas = Gif.getCanvasElement(selector);
  return this._animatorPromise.then(function(animator) {
    // add from here ----->
    if(animator._frames.length === 1) {
      var frame = animator._frames[0]
      var imageData = new ImageData(frame.pixels, frame.width, frame.height);
      canvas.width = frame.width;
      canvas.height = frame.height;
      ctx = canvas.getContext('2d');
      ctx.putImageData(imageData, 0, 0);
      return
    }
    // <-----
    return animator.animateInCanvas(canvas);
  });
};

Gif.prototype.frames as well, if necessary.