
Attach (recommended) or Link to PDF file here:
[NAPEN16171380959.pdf](https://github.com/mozilla/pdf.js/files/6143802/NAPEN16171380959.pdf)

Configuration:
- Web browser and its version: Firefox 88 Nightly
- Operating system and its version: Windows 10
- PDF.js version:
- Is a browser extension: No

What went wrong? (add screenshot)
![](https://user-media-prod-cdn.itsre-sumo.mozilla.net/uploads/images/2021-03-15-10-58-27-ce2796.png)


this.properties = properties;
    var parser = new CFFParser(file, properties, SEAC_ANALYSIS_ENABLED);
    this.cff = parser.parse();
    this.cff.duplicateFirstGlyph();
    var compiler = new CFFCompiler(this.cff);
    this.seacs = this.cff.seacs;
    try {
      this.data = compiler.compile();
    } catch (e) {
      warn("Failed to compile font " + properties.loadedName);
      
      
      this.data = file;
    }
  }
  CFFFont.prototype = {
    get numGlyphs() {