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
info(
            "Attempting to fix invalid indexToLocFormat in head table: " +
              indexToLocFormat
          );
          
          
          
          
          
          
          
          
          
          var numGlyphsPlusOne = numGlyphs + 1;
          if (locaLength === numGlyphsPlusOne << 1) {
            
            data[50] = 0;
            data[51] = 0;
          } else if (locaLength === numGlyphsPlusOne << 2) {
            
            data[50] = 0;
            data[51] = 1;
          } else {
            throw new FormatError(
              "Could not fix indexToLocFormat: " + indexToLocFormat
            );
          }
        }
      }
      function sanitizeGlyphLocations(