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):

tables.head.data[51]
      );
      const glyphsInfo = sanitizeGlyphLocations(
        tables.loca,
        tables.glyf,
        numGlyphs,
        isGlyphLocationsLong,
        hintsValid,
        dupFirstEntry,
        maxSizeOfInstructions
      );
      missingGlyphs = glyphsInfo.missingGlyphs;
      
      
      if (version >= 0x00010000 && tables.maxp.length >= 22) {
        tables.maxp.data[26] = glyphsInfo.maxSizeOfInstructions >> 8;
        tables.maxp.data[27] = glyphsInfo.maxSizeOfInstructions & 255;
      }
    }
    if (!tables.hhea) {
      throw new FormatError('Required "hhea" table is not found');
    }
    
    
    if (tables.hhea.data[10] === 0 && tables.hhea.data[11] === 0) {
      tables.hhea.data[10] = 0xff;
      tables.hhea.data[11] = 0xff;
    }