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
const GlyphMapForStandardFonts = getGlyphMapForStandardFonts();
            for (const charCode in GlyphMapForStandardFonts) {
              map[+charCode] = GlyphMapForStandardFonts[charCode];
            }
          }
        }
        this.toFontChar = map;
      }
      this.loadedName = fontName.split("-")[0];
      this.fontType = getFontType(type, subtype);
    },
    checkAndRepair: function Font_checkAndRepair(name, font, properties) {
      const VALID_TABLES = [
        "OS/2",
        "cmap",
        "head",
        "hhea",
        "hmtx",
        "maxp",
        "name",
        "post",
        "loca",
        "glyf",
        "fpgm",
        "prep",
        "cvt ",
        "CFF ",
      ];
      function readTables(file, numTables) {