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
"The numOfMetrics (" +
              numOfMetrics +
              ") should not be " +
              "greater than the numGlyphs (" +
              numGlyphs +
              ")"
          );
          
          numOfMetrics = numGlyphs;
          header.data[34] = (numOfMetrics & 0xff00) >> 8;
          header.data[35] = numOfMetrics & 0x00ff;
        }
        var numOfSidebearings = numGlyphs - numOfMetrics;
        var numMissing =
          numOfSidebearings - ((metrics.length - numOfMetrics * 4) >> 1);
        if (numMissing > 0) {
          
          
          
          var entries = new Uint8Array(metrics.length + numMissing * 2);
          entries.set(metrics.data);
          if (dupFirstEntry) {
            
            entries[metrics.length] = metrics.data[2];
            entries[metrics.length + 1] = metrics.data[3];
          }
          metrics.data = entries;
        }
      }
      function sanitizeGlyph(