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)

if (!this[$extra]) {
      const edges = this.edge.children.slice();
      if (edges.length < 4) {
        const defaultEdge = edges[edges.length - 1] || new Edge({});
        for (let i = edges.length; i < 4; i++) {
          edges.push(defaultEdge);
        }
      }
      const widths = edges.map(edge => edge.thickness);
      const insets = [0, 0, 0, 0];
      if (this.margin) {
        insets[0] = this.margin.topInset;
        insets[1] = this.margin.rightInset;
        insets[2] = this.margin.bottomInset;
        insets[3] = this.margin.leftInset;
      }
      this[$extra] = { widths, insets, edges };
    }
    return this[$extra];
  }
  [$toStyle]() {