Attach (recommended) or Link to PDF file here:
[test.pdf](https://github.com/mozilla/pdf.js/files/6270827/test.pdf)
Configuration:
- Web browser and its version:chrome 89
- Operating system and its version:win10
- PDF.js version: 2.4/2.7/2.8 no working
- Is a browser extension: no 

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/18545199/113852392-1ae26080-97cf-11eb-9dc9-0cecf52d267b.png)

What went wrong? (add screenshot)
![1617791294(1)](https://user-images.githubusercontent.com/18545199/113852355-10c06200-97cf-11eb-8672-598750f1093a.jpg)


console this log : **FormatError: TrueType Collection does not contain "DCWGQU+CambriaMath" font** 

any solution?thanks
var unitsPerEm =
      override.unitsPerEm ||
      1 / (properties.fontMatrix || FONT_IDENTITY_MATRIX)[0];
    
    
    var scale = properties.ascentScaled
      ? 1.0
      : unitsPerEm / PDF_GLYPH_SPACE_UNITS;
    var typoAscent =
      override.ascent || Math.round(scale * (properties.ascent || bbox[3]));
    var typoDescent =
      override.descent || Math.round(scale * (properties.descent || bbox[1]));
    if (typoDescent > 0 && properties.descent > 0 && bbox[1] < 0) {
      typoDescent = -typoDescent; 
    }
    var winAscent = override.yMax || typoAscent;
    var winDescent = -override.yMin || -typoDescent;
    return (
      "\x00\x03" + 
      "\x02\x24" + 
      "\x01\xF4" + 
      "\x00\x05" + 
      "\x00\x00" + 
      "\x02\x8A" + 
      "\x02\xBB" + 
      "\x00\x00" + 
      "\x00\x8C" + 
      "\x02\x8A" + 
      "\x02\xBB" + 
      "\x00\x00" +