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
for (i = 0, j = itemSize; i < numGlyphs; i++, j += itemSize) {
          var glyphProfile = sanitizeGlyph(
            oldGlyfData,
            locaEntries[i].offset,
            locaEntries[i].endOffset,
            newGlyfData,
            writeOffset,
            hintsValid
          );
          var newLength = glyphProfile.length;
          if (newLength === 0) {
            missingGlyphs[i] = true;
          }
          if (glyphProfile.sizeOfInstructions > maxSizeOfInstructions) {
            maxSizeOfInstructions = glyphProfile.sizeOfInstructions;
          }
          writeOffset += newLength;
          itemEncode(locaData, j, writeOffset);
        }
        if (writeOffset === 0) {
          
          
          var simpleGlyph = new Uint8Array([
            0,
            1,
            0,
            0,
            0,
            0,
            0,