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 (!buffer) {
      return HTMLResult.EMPTY;
    }
    if (!this.contentType) {
      for (const [header, type] of IMAGES_HEADERS) {
        if (
          buffer.length > header.length &&
          header.every((x, i) => x === buffer[i])
        ) {
          this.contentType = type;
          break;
        }
      }
      if (!this.contentType) {
        return HTMLResult.EMPTY;
      }
    }
    
    const blob = new Blob([buffer], { type: this.contentType });
    let style;
    switch (this.aspect) {
      case "fit":
      case "actual":
        
        
        
        break;
      case "height":
        style = {
          height: "100%",