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
(pfbHeader[4] << 16) |
        (pfbHeader[3] << 8) |
        pfbHeader[2];
    }
    
    var eexecBlock = getEexecBlock(file, eexecBlockLength);
    var eexecBlockParser = new Type1Parser(
      eexecBlock.stream,
      true,
      SEAC_ANALYSIS_ENABLED
    );
    var data = eexecBlockParser.extractFontProgram(properties);
    for (const key in data.properties) {
      properties[key] = data.properties[key];
    }
    var charstrings = data.charstrings;
    var type2Charstrings = this.getType2Charstrings(charstrings);
    var subrs = this.getType2Subrs(data.subrs);
    this.charstrings = charstrings;
    this.data = this.wrap(
      name,
      type2Charstrings,
      this.charstrings,
      subrs,
      properties
    );
    this.seacs = this.getSeacs(data.charstrings);
  }
  Type1Font.prototype = {
    get numGlyphs() {