Attach (recommended) or Link to PDF file here:
See pdf in https://github.com/mozilla/pdf.js/issues/3109

Configuration:
- Web browser and its version: Firefox nightly
- Operating system and its version: Windows 10
- PDF.js version: builtin viewer

Steps to reproduce the problem:
1. Look at outlines

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/141514798-0e656865-1cbf-4fb8-a89b-530d36da23c9.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/141514740-c95e0237-8bf4-4129-a4a5-cb2ea5a3f4df.png)

constructor(msg, status) {
    super(msg, "UnexpectedResponseException");
    this.status = status;
  }
}
/**
 * Error caused during parsing PDF data.
 */
class FormatError extends BaseException {
  constructor(msg) {
    super(msg, "FormatError");
  }
}
/**
 * Error used to indicate task cancellation.
 */
class AbortException extends BaseException {
  constructor(msg) {
    super(msg, "AbortException");
  }
}
const NullCharactersRegExp = /\x00/g;
/**
 * @param {string} str
 */
function removeNullCharacters(str) {