fixes possible uncaught TypeError: Cannot call method 'contains' of undefined
fixes possible uncaught TypeError: Cannot call method 'contains' of undefined

envistaInteractive/ionic,jgw96/ionic,janij/ionic,jgw96/ionic,5amfung/ionic,KholofeloMoyaba/atajo-ui,janij/ionic,ralic/ionic,janij/ionic,rreinold/FitnessDashboard_IonicApp,jgw96/ionic,thompsonemerson/ionic,GhostGroup/ionic,KholofeloMoyaba/atajo-ui,MarcBT/ionic,thompsonemerson/ionic,janglednerves/ionic,ralic/ionic,envistaInteractive/ionic,yanzhihong23/ionic-nono,rreinold/FitnessDashboard_IonicApp,VinceOPS/ionic,yanzhihong23/ionic-nono,VinceOPS/ionic,MarcBT/ionic,janglednerves/ionic,yanzhihong23/ionic-nono,yanzhihong23/ionic-nono,MarcBT/ionic,jgw96/ionic,GhostGroup/ionic,janglednerves/ionic,GhostGroup/ionic,janij/ionic,envistaInteractive/ionic,VinceOPS/ionic,ralic/ionic,janglednerves/ionic,GhostGroup/ionic,KholofeloMoyaba/atajo-ui,5amfung/ionic,5amfung/ionic,ralic/ionic,KholofeloMoyaba/atajo-ui,envistaInteractive/ionic,janglednerves/ionic,jgw96/ionic,5amfung/ionic,rreinold/FitnessDashboard_IonicApp,thompsonemerson/ionic,MarcBT/ionic,VinceOPS/ionic,thompsonemerson/ionic,rreinold/FitnessDashboard_IonicApp