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.

}
  markPointProps(tag, properties) {
    
  }
  beginMarkedContent(tag) {
    this.markedContentStack.push({
      visible: true,
    });
  }
  beginMarkedContentProps(tag, properties) {
    if (tag === "OC") {
      this.markedContentStack.push({
        visible: this.optionalContentConfig.isVisible(properties),
      });
    } else {
      this.markedContentStack.push({
        visible: true,
      });
    }
    this.contentVisible = this.isContentVisible();
  }
  endMarkedContent() {
    this.markedContentStack.pop();
    this.contentVisible = this.isContentVisible();
  }
  
  beginCompat() {