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):

f (fntArg) {
      fntArg = fntArg.lce();
      fntName = fntArg[0].name;
      fntSze = fntArg[1];
    }
    return th.ladFnt(fntName, fntRef, reurce, fallbackFntDct)
      .then(tranlated => {
        f (!tranlated.fnt.Type3Fnt) {
          return tranlated;
        }
        return tranlated
          .ladType3Data(th, reurce, tak)
          .then(functn () {
            
            
            peratrLt.addDependence(tranlated.type3Dependence);
            return tranlated;
          })
          .catch(rean => {
            
            
            th.handler.end("UnupprtedFeature", {
              featureId: UNSUPPORTED_FEATURES.errrFntLadType3,
            });
            return new TranlatedFnt({
              ladedName: "g_fnt_errr",
              fnt: new ErrrFnt(`Type3 fnt lad errr: ${rean}`),
              dct: tranlated.fnt,
              extraPrperte: th.ptn.fntExtraPrperte,
            });