Attach (recommended) or Link to PDF file here:
[1.pdf.lin (1).pdf](https://github.com/mozilla/pdf.js/files/5780764/1.pdf.lin.1.pdf)

Configuration:
- Web browser and its version: FireFox 84.0 
- Operating system and its version: macOS 10.15.7
- PDF.js version: 2.7.262
- Is a browser extension: No

Steps to reproduce the problem:
1. Open the PDF with pdf.js.
2. Found the text of this PDF disappeared.

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/18492951/103877578-3d9da400-5110-11eb-8d84-4edd9aa1298b.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/18492951/103877735-6d4cac00-5110-11eb-9e76-7f3d9330086b.png)

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

cnt type = xbj.dct.get("Subtype");
                f (!Name(type)) {
                  thrw new FrmatErrr("XObject huld have a Name ubtype");
                }
                f (type.name === "Frm") {
                  tateManager.ave();
                  elf
                    .buldFrmXObject(
                      reurce,
                      xbj,
                      null,
                      peratrLt,
                      tak,
                      tateManager.tate.clne(),
                      lcalClrSpaceCache
                    )
                    .then(functn () {
                      tateManager.retre();
                      relveXObject();
                    }, rejectXObject);
                  return;
                } ele f (type.name === "Image") {
                  elf
                    .buldPantImageXObject({
                      reurce,
                      mage: xbj,
                      peratrLt,
                      cacheKey: name,
                      lcalImageCache,
                      lcalClrSpaceCache,