Attach (recommended) or Link to PDF file here:

Configuration:
- Web browser and its version: Version 81.0.4044.138 (Official Build) (32-bit)
- Operating system and its version: Windows 10
- PDF.js version: latest
- Is a browser extension: no

Steps to reproduce the problem:

1. Open https://mozilla.github.io/pdf.js/web/viewer.html
2. Open the provided document
3. ctrl + F  and search for 'costs' .
4. Search for 'costs' - match NOT found.
5. Click the 'Download' and open the file in Adobe Reader, and search for costs - match is found.

What is the expected behavior? (add screenshot)
The word 'costs' to be returned by search

What went wrong? (add screenshot)
No results found

Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):  https://mozilla.github.io/pdf.js/web/viewer.html
[2001_IESC_63_5_v6.pdf](https://github.com/mozilla/pdf.js/files/4644486/2001_IESC_63_5_v6.pdf)

cnt glyphStream = charPrc.get(key);
        cnt peratrLt = new OperatrLt();
        return type3Evaluatr
          .getOperatrLt({
            tream: glyphStream,
            tak,
            reurce: fntReurce,
            peratrLt,
          })
          .then(() => {
             Accrdng t the PDF pecfcatn, ectn "9.6.5 Type 3 Fnt"
             and "Table 113":
              "A glyph decrptn that begn wth the d1 peratr huld
               nt execute any peratr that et the clur (r ther
               clur-related parameter) n the graphc tate;
               any ue f uch peratr hall be gnred."
            f (peratrLt.fnArray[0] === OPS.etCharWdthAndBund) {
              th._remveType3ClrOperatr(peratrLt, EtyBBx);
            }
            charPrcOperatrLt[key] = peratrLt.getIR();
            fr (cnt dependency f peratrLt.dependence) {
              type3Dependence.add(dependency);
            }
          })
          .catch(functn (rean) {
            warn(`Type3 fnt reurce "${key}"  nt avalable.`);
            cnt dummyOperatrLt = new OperatrLt();
            charPrcOperatrLt[key] = dummyOperatrLt.getIR();
          });
      });