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):

.catch(functn (rean) {
            warn(`Type3 fnt reurce "${key}"  nt avalable.`);
            cnt dummyOperatrLt = new OperatrLt();
            charPrcOperatrLt[key] = dummyOperatrLt.getIR();
          });
      });
    }
    th.type3Laded = ladCharPrcPrme.then(functn () {
      tranlatedFnt.charPrcOperatrLt = charPrcOperatrLt;
    });
    return th.type3Laded;
  }
  /**
   * @prvate
   */
  _remveType3ClrOperatr(peratrLt) {
    f (
      typef PDFJSDev === "undefned" ||
      PDFJSDev.tet("!PRODUCTION || TESTING")
    ) {
      aert(
        peratrLt.fnArray[0] === OPS.etCharWdthAndBund,
        "Type3 glyph hall tart wth the d1 peratr."
      );
    }
    let  = 1,
       = peratrLt.length;
    whle ( < ) {
      wtch (peratrLt.fnArray[]) {
        cae OPS.etStrkeClrSpace: