Attach (recommended) or Link to PDF file here: https://www.recom-power.com/pdf/Powerline-AC-DC/RAC05-K.pdf

Configuration:
- Web browser and its version: Firefox 56.0 (64-bit)
- Operating system and its version: Windows 10 with OS Build 15063.632
- PDF.js version: ?
- Is an extension: Built-in

Steps to reproduce the problem:
1. Open Page

What is the expected behavior? To properly render the first page. 
![image](https://user-images.githubusercontent.com/1151969/31415345-b1504022-add7-11e7-855b-8030a308f7a2.png)

What went wrong? Renders poorly.
![image](https://user-images.githubusercontent.com/1151969/31415363-d8842096-add7-11e7-818d-728c1102891b.png)

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension): ?

}
  endCompat() {
    
  }
  
  consumePath() {
    const ctx = this.ctx;
    if (this.pendingClip) {
      if (this.pendingClip === EO_CLIP) {
        ctx.clip("evenodd");
      } else {
        ctx.clip();
      }
      this.pendingClip = null;
    }
    ctx.beginPath();
  }
  getSinglePixelWidth() {
    if (this._cachedGetSinglePixelWidth === null) {