当窗口没有对准焦点时，音频不会播放

Question

我有一个用Elm编写的应用程序，可以播放在Electron中显示的潘多拉音乐。多数情况下，一首歌结束后，它会照常移至下一首歌，但偶尔如果窗口没有聚焦并且在另一首歌的后面（通常当我仅使用一个显示器时），进度条将保持移动但只有在聚焦窗口之前，音频才会播放。有谁知道这可能是什么原因？

          onEnded
                (case (gm.currentStation) of
                    Just station ->
                        station.id

                    Nothing ->
                        ""
                )
            , id "songAudio"
            , src
                (case (List.head gm.songQueue) of
                    Just song ->
                        song.audioURL

                    Nothing ->
                        ""
                )
            , autoplay True
            ]
            [] 
onEnded : String -> Attribute Msg
onEnded stationId =
    Html.Events.on "ended"
        (Decode.succeed (SongEnded stationId))


( { gm
            | songQueue = (List.drop 1 gm.songQueue)
            , previousSongs =
                (case List.head gm.songQueue of
                    Just song ->
                        song

                    Nothing ->
                        { songTitle = ""
                        , trackLength = 0
                        , rating = 0
                        , audioURL = ""
                        , artistName = ""
                        , albumTitle = ""
                        , albumArt = ""
                        , trackToken = ""
                        }
                )
                    :: gm.previousSongs
            , currentTime = 0
            , isPlaying = True
          }
        , cmds
            [ if List.length gm.songQueue == 2 then
                Http.send LoadedNextSongs
                    (SongApi.getNext stationId gm.authToken False)
              else
                Cmd.none
            ]
        )

在大多数情况下，它会继续正常播放歌曲，但有时直到我重新调整窗口的焦点时才开始播放歌曲。 （尽管进度条一直在计数，所以导致其播放的代码应该可以正常工作。）