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
var EEXEC_SIGNATURE = [0x65, 0x65, 0x78, 0x65, 0x63];
    var streamStartPos = stream.pos; 
    var headerBytes, headerBytesLength, block;
    try {
      headerBytes = stream.getBytes(suggestedLength);
      headerBytesLength = headerBytes.length;
    } catch (ex) {
      if (ex instanceof MissingDataException) {
        throw ex;
      }
      
      
      
    }
    if (headerBytesLength === suggestedLength) {
      
      
      
      
      block = findBlock(
        headerBytes,
        EEXEC_SIGNATURE,