with HTML5 video player ( fallback to Flash) using video.js

streaming for iPhone from a private Wowza server

Playing fine in Safari w user agent iPhone !

On iPhone device ( handset or simulator)  it's playing fine once : the sequence is Ok,

 then switching to the Playlist I can play once each clip, then it's over , cannot play clips anymore ...

is it something related to iPhone handset cache or  Safari cache ? 

running the iOS simulator how can I get a log and see what happen, currently I am in the dark

thanks for your feedback