i have a Detail Page button on OLI that calls this flow.  In Lightning I get a " refused to Connect " error and hangs on the Screen.  Does any one know how to fix this so it will work in Lightning?
 
/flow/CreateDeliverableFromOpportunityLineItem?oliId={!CASESAFEID(OpportunityLineItem.Id)}&retURL=/apex/Redirect?parentId={!OpportunityLineItem.Id}%26mode=edit%26type=latest_deliverable