Slightly clean up the final URL creation in canvas.toDataURL
Slightly clean up the final URL creation in canvas.toDataURL

pyfisch/servo,pyfisch/servo,pyfisch/servo,jimberlage/servo,KiChjang/servo,larsbergstrom/servo,splav/servo,emilio/servo,jimberlage/servo,szeged/servo,nnethercote/servo,splav/servo,KiChjang/servo,pyfisch/servo,saneyuki/servo,nnethercote/servo,DominoTree/servo,saneyuki/servo,larsbergstrom/servo,nnethercote/servo,emilio/servo,paulrouget/servo,DominoTree/servo,KiChjang/servo,larsbergstrom/servo,KiChjang/servo,pyfisch/servo,KiChjang/servo,DominoTree/servo,larsbergstrom/servo,saneyuki/servo,paulrouget/servo,peterjoel/servo,peterjoel/servo,nnethercote/servo,emilio/servo,splav/servo,szeged/servo,notriddle/servo,peterjoel/servo,sadmansk/servo,splav/servo,peterjoel/servo,paulrouget/servo,splav/servo,sadmansk/servo,jimberlage/servo,KiChjang/servo,paulrouget/servo,KiChjang/servo,pyfisch/servo,notriddle/servo,szeged/servo,splav/servo,peterjoel/servo,sadmansk/servo,pyfisch/servo,saneyuki/servo,DominoTree/servo,KiChjang/servo,szeged/servo,nnethercote/servo,szeged/servo,larsbergstrom/servo,splav/servo,larsbergstrom/servo,sadmansk/servo,nnethercote/servo,paulrouget/servo,splav/servo,notriddle/servo,peterjoel/servo,sadmansk/servo,paulrouget/servo,larsbergstrom/servo,szeged/servo,nnethercote/servo,KiChjang/servo,peterjoel/servo,splav/servo,emilio/servo,pyfisch/servo,KiChjang/servo,pyfisch/servo,jimberlage/servo,DominoTree/servo,emilio/servo,DominoTree/servo,saneyuki/servo,nnethercote/servo,notriddle/servo,saneyuki/servo,emilio/servo,sadmansk/servo,emilio/servo,emilio/servo,saneyuki/servo,DominoTree/servo,szeged/servo,sadmansk/servo,larsbergstrom/servo,paulrouget/servo,emilio/servo,paulrouget/servo,jimberlage/servo,jimberlage/servo,nnethercote/servo,jimberlage/servo,paulrouget/servo,larsbergstrom/servo,emilio/servo,szeged/servo,peterjoel/servo,jimberlage/servo,sadmansk/servo,jimberlage/servo,nnethercote/servo,notriddle/servo,saneyuki/servo,notriddle/servo,DominoTree/servo,DominoTree/servo,szeged/servo,splav/servo,notriddle/servo,notriddle/servo,notriddle/servo,paulrouget/servo,saneyuki/servo,notriddle/servo,peterjoel/servo,szeged/servo,saneyuki/servo,DominoTree/servo,peterjoel/servo,larsbergstrom/servo,pyfisch/servo