Attach (recommended) or Link to PDF file here:
[test.pdf](https://github.com/mozilla/pdf.js/files/6715502/test.pdf)

Configuration:
- Web browser and its version: Google Chrome Version 91.0.4472.114 
- Operating system and its version: Windows 10 Enterprise
- PDF.js version: 
- Is a browser extension: yes

Steps to reproduce the problem:
1. download file
2. open file



What is the expected behavior? (add screenshot)
show symbol
![image](https://user-images.githubusercontent.com/50500976/123409847-55ca8800-d5b7-11eb-9e5b-c7f3b33c00e1.png)

What went wrong? (add screenshot)
Does not show symbol
![image](https://user-images.githubusercontent.com/50500976/123409707-274cad00-d5b7-11eb-9a64-b11dcf3cdc3f.png)
Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension): Latest Version Chrome extension

cvtData.set(cvt.data);
        cvt.data = cvtData;
      }
      return ttContext.hintsValid;
    }
    
    font = new Stream(new Uint8Array(font.getBytes()));
    let header, tables;
    if (isTrueTypeCollectionFile(font)) {
      const ttcData = readTrueTypeCollectionData(font, this.name);
      header = ttcData.header;
      tables = ttcData.tables;
    } else {
      header = readOpenTypeHeader(font);
      tables = readTables(font, header.numTables);
    }
    let cff, cffFile;
    const isTrueType = !tables["CFF "];
    if (!isTrueType) {
      const isComposite =
        properties.composite &&
        ((properties.cidToGidMap || []).length > 0 ||
          !(properties.cMap instanceof IdentityCMap));
      
      if (
        (header.version === "OTTO" && !isComposite) ||
        !tables.head ||
        !tables.hhea ||
        !tables.maxp ||
        !tables.post