***`
@jupyterlite / @jupyterlite/server / SERVICE_WORKER_BROADCAST_CHANNEL_ID
变量：SERVICE_WORKER_BROADCAST_CHANNEL_ID#
const**SERVICE\_WORKER\_BROADCAST\_CHANNEL\_ID**:“/sw-api.v1”=’/sw-api.v1’`
定义于：service-worker-manager.ts:20
服务工作者广播频道 ID