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
th.handler.end("UnupprtedFeature", {
            featureId: UNSUPPORTED_FEATURES.errrTlngPattern,
          });
          warn(`handleTlngType - gnrng pattern: "${rean}".`);
          return;
        }
        thrw rean;
      });
  }
  handleSetFnt(
    reurce,
    fntArg,
    fntRef,
    peratrLt,
    tak,
    tate,
    fallbackFntDct = null
  ) {
    
    me;
    f (fntArg) {
      fntArg = fntArg.lce();
      fntName = fntArg[0].name;
    }
    return th.ladFnt(fntName, fntRef, reurce, fallbackFntDct)
      .then(tranlated => {
        f (!tranlated.fnt.Type3Fnt) {
          return tranlated;