fix(browser): do not omit unexpected keyevent
fix(browser): do not omit unexpected keyevent

- closes #20681

pyfisch/servo,pyfisch/servo,dati91/servo,splav/servo,DominoTree/servo,ConnorGBrewster/servo,notriddle/servo,avadacatavra/servo,notriddle/servo,peterjoel/servo,splav/servo,notriddle/servo,KiChjang/servo,nnethercote/servo,canaltinova/servo,KiChjang/servo,DominoTree/servo,canaltinova/servo,peterjoel/servo,emilio/servo,notriddle/servo,paulrouget/servo,notriddle/servo,jimberlage/servo,SimonSapin/servo,dati91/servo,avadacatavra/servo,nnethercote/servo,cbrewster/servo,DominoTree/servo,KiChjang/servo,notriddle/servo,saneyuki/servo,SimonSapin/servo,szeged/servo,jimberlage/servo,sadmansk/servo,cbrewster/servo,DominoTree/servo,saneyuki/servo,ConnorGBrewster/servo,sadmansk/servo,emilio/servo,saneyuki/servo,emilio/servo,emilio/servo,emilio/servo,SimonSapin/servo,cbrewster/servo,saneyuki/servo,paulrouget/servo,larsbergstrom/servo,nnethercote/servo,peterjoel/servo,canaltinova/servo,paulrouget/servo,SimonSapin/servo,peterjoel/servo,larsbergstrom/servo,canaltinova/servo,notriddle/servo,DominoTree/servo,SimonSapin/servo,nnethercote/servo,ConnorGBrewster/servo,pyfisch/servo,KiChjang/servo,ConnorGBrewster/servo,dati91/servo,ConnorGBrewster/servo,larsbergstrom/servo,nnethercote/servo,SimonSapin/servo,peterjoel/servo,paulrouget/servo,paulrouget/servo,splav/servo,DominoTree/servo,paulrouget/servo,szeged/servo,saneyuki/servo,notriddle/servo,canaltinova/servo,pyfisch/servo,canaltinova/servo,splav/servo,emilio/servo,splav/servo,KiChjang/servo,saneyuki/servo,saneyuki/servo,avadacatavra/servo,pyfisch/servo,nnethercote/servo,larsbergstrom/servo,cbrewster/servo,mbrubeck/servo,DominoTree/servo,szeged/servo,dati91/servo,notriddle/servo,szeged/servo,szeged/servo,jimberlage/servo,ConnorGBrewster/servo,pyfisch/servo,SimonSapin/servo,peterjoel/servo,larsbergstrom/servo,pyfisch/servo,splav/servo,avadacatavra/servo,pyfisch/servo,KiChjang/servo,canaltinova/servo,mbrubeck/servo,szeged/servo,mbrubeck/servo,cbrewster/servo,mbrubeck/servo,mbrubeck/servo,sadmansk/servo,peterjoel/servo,dati91/servo,KiChjang/servo,jimberlage/servo,sadmansk/servo,emilio/servo,avadacatavra/servo,pyfisch/servo,paulrouget/servo,ConnorGBrewster/servo,sadmansk/servo,larsbergstrom/servo,peterjoel/servo,mbrubeck/servo,DominoTree/servo,paulrouget/servo,paulrouget/servo,saneyuki/servo,larsbergstrom/servo,peterjoel/servo,splav/servo,splav/servo,nnethercote/servo,saneyuki/servo,sadmansk/servo,paulrouget/servo,mbrubeck/servo,nnethercote/servo,dati91/servo,szeged/servo,jimberlage/servo,dati91/servo,jimberlage/servo,cbrewster/servo,mbrubeck/servo,jimberlage/servo,splav/servo,avadacatavra/servo,cbrewster/servo,KiChjang/servo,KiChjang/servo,emilio/servo,canaltinova/servo,DominoTree/servo,avadacatavra/servo,larsbergstrom/servo,avadacatavra/servo,cbrewster/servo,splav/servo,szeged/servo,larsbergstrom/servo,szeged/servo,jimberlage/servo,saneyuki/servo,sadmansk/servo,dati91/servo,peterjoel/servo,larsbergstrom/servo,emilio/servo,sadmansk/servo,notriddle/servo,emilio/servo,szeged/servo,ConnorGBrewster/servo,SimonSapin/servo,pyfisch/servo,nnethercote/servo,jimberlage/servo,KiChjang/servo,nnethercote/servo,DominoTree/servo