When an aura event is fired from non-aura javascript, event object isn't normalized and trying to stop the event throw an error on IE8. Use case, opening a dialog component and passing a dom event to dialogManager
When an aura event is fired from non-aura javascript, event object isn't normalized and trying to stop the event throw an error on IE8. Use case, opening a dialog component and passing a dom event to dialogManager

forcedotcom/aura,TribeMedia/aura,TribeMedia/aura,forcedotcom/aura,badlogicmanpreet/aura,badlogicmanpreet/aura,DebalinaDey/AuraDevelopDeb,DebalinaDey/AuraDevelopDeb,lhong375/aura,igor-sfdc/aura,TribeMedia/aura,navyliu/aura,navyliu/aura,lcnbala/aura,DebalinaDey/AuraDevelopDeb,lhong375/aura,forcedotcom/aura,forcedotcom/aura,badlogicmanpreet/aura,lhong375/aura,madmax983/aura,igor-sfdc/aura,lcnbala/aura,madmax983/aura,madmax983/aura,navyliu/aura,forcedotcom/aura,madmax983/aura,badlogicmanpreet/aura,igor-sfdc/aura,navyliu/aura,navyliu/aura,SalesforceSFDC/aura,SalesforceSFDC/aura,lcnbala/aura,TribeMedia/aura,madmax983/aura,navyliu/aura,badlogicmanpreet/aura,madmax983/aura,badlogicmanpreet/aura,TribeMedia/aura,SalesforceSFDC/aura,lcnbala/aura,igor-sfdc/aura,DebalinaDey/AuraDevelopDeb,lcnbala/aura,lcnbala/aura,igor-sfdc/aura,SalesforceSFDC/aura,SalesforceSFDC/aura,DebalinaDey/AuraDevelopDeb,SalesforceSFDC/aura,TribeMedia/aura,DebalinaDey/AuraDevelopDeb,lhong375/aura