Method onError

packages/browser/src/client/orchestrator.ts:456–460

(e: Event)

      }

      function onError(e: Event) {
        reject((e as CustomEvent).detail)
        cleanupEvents()
        events!.delete(event.event)
      }

      this.eventTarget.addEventListener('iframeerror', onError)
      channel.addEventListener('message', onReceived)