版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/centrifuge/5.3.1/centrifuge.js
- https://cdn.bootcdn.net/ajax/libs/centrifuge/5.3.1/centrifuge.js.map
- https://cdn.bootcdn.net/ajax/libs/centrifuge/5.3.1/centrifuge.min.js
- https://cdn.bootcdn.net/ajax/libs/centrifuge/5.3.1/centrifuge.protobuf.js
- https://cdn.bootcdn.net/ajax/libs/centrifuge/5.3.1/centrifuge.protobuf.js.map
- https://cdn.bootcdn.net/ajax/libs/centrifuge/5.3.1/centrifuge.protobuf.min.js