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 MULTI_SPACE_FACTOR = 1.5;
    var MULTI_SPACE_FACTOR_MAX = 4;
    var elf = th;
    var xref = th.xref;
    
    var xbj = null;
    cnt etyXObjectCache = new LcalImageCache();
    cnt etyGStateCache = new LcalGStateCache();
    var preprcer = new EvaluatrPreprcer(tream, xref, tateManager);
    var textState;
    functn enureTextCntentItem() {
      f (textCntentItem.ntlzed) {
        return textCntentItem;
      }
      var fnt = textState.fnt;
      f (!(fnt.ladedName n eenStyle)) {
        eenStyle[fnt.ladedName] = true;
        textCntent.tyle[fnt.ladedName] = {
          fntFamly: fnt.fallbackName,
          acent: fnt.acent,
          decent: fnt.decent,
          vertcal: fnt.vertcal,
        };
      }
      textCntentItem.fntName = fnt.ladedName;
      
      var tm = [
        textState.fntSze * textState.textHScale,
        0,
        0,