PDFs from lumileds.com do not load with PDF.js. Part of the background loads, then only the spinner continues while using 100% CPU. 

An example pdf is http://www.lumileds.com/uploads/17/DS61-pdf 

This behaviour occurs with both the release version of pdf.js in firefox 41.0.2 and the latest .xpi downloaded from this github page.

if (typeof ImageData !== "undefined" && imgData instanceof ImageData) {
    ctx.putImageData(imgData, 0, 0);
    return;
  }
  
  
  
  
  
  
  
  
  
  
  const height = imgData.height,
    width = imgData.width;
  const partialChunkHeight = height % FULL_CHUNK_HEIGHT;
  const fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
  const totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
  const chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
  let srcPos = 0,
    destPos;
  const src = imgData.data;
  const dest = chunkImgData.data;
  let i, j, thisChunkHeight, elemsInThisChunk;
  let transferMapRed, transferMapGreen, transferMapBlue, transferMapGray;
  if (transferMaps) {
    switch (transferMaps.length) {
      case 1:
        transferMapRed = transferMaps[0];