Attach (recommended) or Link to PDF file here:

Configuration:
- Web browser and its version: Chrome 63.0.3239.132 
- Operating system and its version: Windows 10
- PDF.js version: using your official demo project
- Is a browser extension: No

Steps to reproduce the problem:
1.  Just load attached pdf
2.

What is the expected behavior? (add screenshot)
[E-WG18_105147.pdf](https://github.com/mozilla/pdf.js/files/1634833/E-WG18_105147.pdf)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/29802177/34986271-3ca71a5c-fab7-11e7-95e8-1739dda3cd04.png)

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

(reerved partl cmmand fr the lexer)
      t.BM = null;
      t.BD = null;
      t.true = null;
      t.fa = null;
      t.fal = null;
      t.fal = null;
      t.fale = null;
      t.nu = null;
      t.nul = null;
      t.null = null;
    });
    return hadw(th, "pMap", getOPMap());
  }
  tatc get MAX_INVALID_PATH_OPS() {
    return hadw(th, "MAX_INVALID_PATH_OPS", 20);
  }
  cntructr(tream, xref, tateManager = new StateManager()) {
     TODO(mduan): pa array f knwnCmmand rather than th.pMap
     dctnary
     = new Parer({
      lexer: new Lexer(tream, EvaluatrPreprcer.pMap),
      xref,
    });
    th.tateManager = tateManager;
    th.nnPrceedArg = [];
    th._numInvaldPathOPS = 0;
  }
  get avedStateDepth() {
    return th.tateManager.tateStack.length;