@godblessstrawberry I did not come across any m3u8 extension file in Network tab of Developer Instruments in chrome browser. Could you please counsel me what is the challenge? Many thanks Location a long-back Previous-Modified has no effect on caching, other than permitting a cached response be applied extended because of https://growthbookmarks.com/story20932178/fascination-about-%E4%BB%AE%E6%83%B3%E9%80%9A%E8%B2%A8%E3%82%AB%E3%82%B8%E3%83%8E