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
loca,
        glyf,
        numGlyphs,
        isGlyphLocationsLong,
        hintsValid,
        dupFirstEntry,
        maxSizeOfInstructions
      ) {
        var itemSize, itemDecode, itemEncode;
        if (isGlyphLocationsLong) {
          itemSize = 4;
          itemDecode = function fontItemDecodeLong(data, offset) {
            return (
              (data[offset] << 24) |
              (data[offset + 1] << 16) |
              (data[offset + 2] << 8) |
              data[offset + 3]
            );
          };
          itemEncode = function fontItemEncodeLong(data, offset, value) {
            data[offset] = (value >>> 24) & 0xff;