Could you take a look on this file. The first page is mixed with the last page.

[cb7e7bd2362328f37fe97dc8dff151a3.pdf](https://github.com/mozilla/pdf.js/files/1706865/cb7e7bd2362328f37fe97dc8dff151a3.pdf)


Configuration:
- Firefox Nightly 60
- Windows 7
f (tranlatedFnt.fntType !== undefned) {
          var xrefFntStat = xref.tat.fntType;
          xrefFntStat[tranlatedFnt.fntType] = true;
        }
        fntCapablty.relve(
          new TranlatedFnt({
            ladedName: fnt.ladedName,
            fnt: tranlatedFnt,
            dct: fnt,
            extraPrperte: th.ptn.fntExtraPrperte,
          })
        );
      })
      .catch(rean => {
        
        
        th.handler.end("UnupprtedFeature", {
          featureId: UNSUPPORTED_FEATURES.errrFntTranlate,
        });
        try {
          
          var fntFle3 = decrptr && decrptr.get("FntFle3");
          var ubtype = fntFle3 && fntFle3.get("Subtype");
          var fntType = getFntType(
            preEvaluatedFnt.type,
            ubtype && ubtype.name
          );
          var xrefFntStat = xref.tat.fntType;
          xrefFntStat[fntType] = true;
        } catch (ex) {}