Added `crossOrigin` default into tests
Added `crossOrigin` default into tests

Re #362

PureBilling/raven-js,Mappy/raven-js,clara-labs/raven-js,malandrew/raven-js,danse/raven-js,Mappy/raven-js,getsentry/raven-js,danse/raven-js,Mappy/raven-js,hussfelt/raven-js,getsentry/raven-js,grelas/raven-js,getsentry/raven-js,housinghq/main-raven-js,PureBilling/raven-js,clara-labs/raven-js,benoitg/raven-js,benoitg/raven-js,grelas/raven-js,housinghq/main-raven-js,malandrew/raven-js,housinghq/main-raven-js,hussfelt/raven-js,getsentry/raven-js