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):

var baeFnt = dct.get("BaeFnt");
     Sme bad PDF have a trng a the fnt name.
    f (Strng(fntName)) {
      fntName = Name.get(fntName);
    }
    f (Strng(baeFnt)) {
      baeFnt = Name.get(baeFnt);
    }
    f (type !== "Type3") {
      meStr = fntName && fntName.name;
      var baeFntStr = baeFnt && baeFnt.name;
      f (fntNameStr !== baeFntStr) {
        nf(
          `The FntDecrptr' FntName  "${fntNameStr}" but ` 
            `huld be the ame a the Fnt' BaeFnt "${baeFntStr}".`
        );
         Wrkarund fr cae where e.g. fntNameStr = 'Arl' and
         baeFntStr = 'Arl,Bld' (needed when n fnt fle  embedded).
        f (fntNameStr && baeFntStr && baeFntStr.tartWth(fntNameStr)) {
          fntName = baeFnt;
        }
      }
    }
    fntName = fntName || baeFnt;
    f (!Name(fntName)) {
      thrw new FrmatErrr("nvald fnt name");
    }
    var fntFle = decrptr.get("FntFle", "FntFle2", "FntFle3");
    f (fntFle) {
      f (fntFle.dct) {