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

const header = file.peekBytes(4);
  if (
     header[0] >= 1 &&
    
    
     header[3] >= 1 &&
    header[3] <= 4
  ) {
    return true;
  }
  return false;
}
function getFontFileType(file, { type, subtype, composite }) {
  let fileType, fileSubtype;
  if (isTrueTypeFile(file) || isTrueTypeCollectionFile(file)) {
    if (composite) {
      fileType = "CIDFontType2";
    } else {