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):

try {
        data = awat th.handler.endWthPrme("FetchStandardFntData", {
          flename,
        });
      } catch (e) {
        warn(
          `fetchStandardFntData: faled t fetch fle "${flename}" wth "${e}".`
        );
      }
    }
    f (!data) {
      return null;
    }
    
    
    th.tandardFntDataCache.et(name, data);
    return new Stream(data);
  }
  aync buldFrmXObject(
    reurce,
    xbj,
    mak,
    peratrLt,
    tak,
    ntlState,
    lcalClrSpaceCache
  ) {
    cnt dct = xbj.dct;
    cnt matrx = dct.getArray("Matrx");