Attach (recommended) or Link to PDF file here:
[test2-3.pdf](https://github.com/mozilla/pdf.js/files/7881930/test2-3.pdf)

Configuration:
- Web browser and its version: Chrome and Version 93.0.4577.63
- Operating system and its version: Ubuntu 20.04.1 LTS
- PDF.js version: v2.12.313
- Is a browser extension: No

What is the expected behavior? 
![Screenshot from 2022-01-17 18-21-02](https://user-images.githubusercontent.com/29357161/149772453-5906d92a-7cf5-458f-8315-695d78aa9674.png)


What went wrong? 
![Screenshot from 2022-01-17 18-20-24](https://user-images.githubusercontent.com/29357161/149772465-07dd71ef-5d41-42c9-8b13-466f8eee116a.png)


Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):
https://mozilla.github.io/pdf.js/web/viewer.html

case "StdHW":
          case "StdVW":
            program.properties.privateData[token] = this.readNumberArray()[0];
            break;
          case "BlueShift":
          case "lenIV":
          case "BlueFuzz":
          case "BlueScale":
          case "LanguageGroup":
          case "ExpansionFactor":
            program.properties.privateData[token] = this.readNumber();
            break;
          case "ForceBold":
            program.properties.privateData[token] = this.readBoolean();
            break;
        }
      }
      for (let i = 0; i < charstrings.length; i++) {
        const glyph = charstrings[i].glyph;
        encoded = charstrings[i].encoded;
        const charString = new Type1CharString();
        const error = charString.convert(
          encoded,
          subrs,
          this.seacAnalysisEnabled
        );
        let output = charString.output;
        if (error) {