Safari 4 & Youtube/Imeem Playlist Issue

[jtang]

I'm using the Safari 4 beta and there seems to be an issue with playlists on music/video sites like Youtube and Imeem. When I start the playlist, the first song will play fine but if I don't have the window active it won't advance to the next one.. it'll just sit there loading. I have to select the Youtube/Imeem window for it to progress to the next song.

Has anyone experienced this before and know a fix?

 

[BlueRevolution]

It is Safari 4 beta. Any more questions?

 

[GGJstudios]

I'm not having any problem with those sites advancing through the playlist, even with Safari minimized and other windows active.