Greg 89 login redirect

frontend/src/routes/invitelink/index.tsx

 import { useEffect } from 'react'
 import { Redirect } from 'react-router-dom'
-import { submitJsonOpts } from 'utils'
+import { submitJsonOpts, setCookie } from 'utils'
 
 function InviteLink() {
   // Fetch backend endpoint to preserve invite_id in backend session then redirect
@@ -11,6 +11,7 @@ function InviteLink() {
   useEffect(() => {
     fetch('/api/ui/v1/invitecheck/', submitJsonOpts('POST', { uuid: id }))
   }, [])
+  setCookie('redirect', 'guestregister')
   return <Redirect to="/invite" />
 }