Attach (recommended) or Link to PDF file here:
[FormDB2_fr.pdf](https://github.com/mozilla/pdf.js/files/7352426/FormDB2_fr.pdf)

Configuration:
- Web browser and its version: Firefox nightly
- Operating system and its version: linux debian

Steps to reproduce the problem:
1. Open the pdf
2. The image on the top of each pages is missing 

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/137465500-e8788893-f33d-4532-871d-43b464fa85f4.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/137465363-f2b35fe4-6776-45e9-b9e4-ccef6d9ad670.png)

return new SubformSet(attrs);
  }
  static subjectDN(attrs) {
    return new SubjectDN(attrs);
  }
  static subjectDNs(attrs) {
    return new SubjectDNs(attrs);
  }
  static submit(attrs) {
    return new Submit(attrs);
  }
  static template(attrs) {
    return new Template(attrs);
  }
  static text(attrs) {
    return new Text(attrs);
  }
  static textEdit(attrs) {
    return new TextEdit(attrs);
  }
  static time(attrs) {
    return new Time(attrs);
  }
  static timeStamp(attrs) {
    return new TimeStamp(attrs);
  }
  static toolTip(attrs) {
    return new ToolTip(attrs);
  }
  static traversal(attrs) {