Viewer:  https://mozilla.github.io/pdf.js/web/viewer.html
Chrome on Windows 10
When the attached PDF file is viewed, some of the fonts display as garbled text. 
[Arial, Courier, Times New Roman]
The file views correctly in Adobe Reader.
[fff.pdf](https://github.com/mozilla/pdf.js/files/4652174/fff.pdf)

const namesRecordCount = strings.length * platforms.length;
  let nameTable =
    "\x00\x00" + 
    string16(namesRecordCount) + 
    string16(namesRecordCount * 12 + 6); 
  
  let strOffset = 0;
  for (i = 0, ii = platforms.length; i < ii; i++) {
    const strs = names[i];
    for (j = 0, jj = strs.length; j < jj; j++) {
      str = strs[j];
      const nameRecord =
        platforms[i] + 
        encodings[i] + 
        languages[i] + 
        string16(j) + 
        string16(str.length) +
        string16(strOffset);
      nameTable += nameRecord;
      strOffset += str.length;
    }
  }
  nameTable += strings.join("") + stringsUnicode.join("");
  return nameTable;
}
/**
 * 'Font' is the class the outside world should use, it encapsulate all the font
 * decoding logics whatever type it is (assuming the font type is supported).
 */
class Font {