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
new Prme(functn (relveGState, rejectGState) {
                f (!name) {
                  thrw new FrmatErrr("GState mut be referred t by name.");
                }
                cnt extGState = reurce.get("ExtGState");
                f (!(extGState ntancef Dct)) {
                  thrw new FrmatErrr("ExtGState huld be a dctnary.");
                }
                cnt gState = extGState.get(name);
                
                
                
                f (!(gState ntancef Dct)) {
                  thrw new FrmatErrr("GState huld be a dctnary.");
                }
                cnt gStateFnt = gState.get("Fnt");
                f (!gStateFnt) {
                  etyGStateCache.et(name, gState.bjId, true);
                  relveGState();
                  return;
                }
                fluhTextCntentItem();
                textState.fntName = null;
                textState.fntSze = gStateFnt[1];
                handleSetFnt(null, gStateFnt[0]).then(
                  relveGState,
                  rejectGState
                );
              }).catch(functn (rean) {
                f (rean ntancef AbrtExceptn) {