message: Fix ass danmaku download (fix
diff: @@ -62,7 +62,7 @@ export class JsonDanmaku {
  }
  console.log(`received blob for segment ${index + 1}`, blob)
  const result = await decodeDanmakuSegment(blob)
  - return result.elems
  + return result.elems ?? []
  }))
  this.jsonDanmakus = segments.flat().sort(ascendingSort(it => it.progress))
  return this
  