It seems that opds server protocol is [`opdsf(s)`](https://github.com/ollm/OpenComic/blob/160dc8958869c25f60a2f5ff8807b0a00aa71e37/scripts/server-client.js#L51) but can't pass [setting check](https://github.com/ollm/OpenComic/blob/160dc8958869c25f60a2f5ff8807b0a00aa71e37/scripts/settings.js#L304) 
It seems that opds server protocol is
opdsf(s)but can't pass setting check