@godblessstrawberry I did not locate any m3u8 extension file in Community tab of Developer Applications in chrome browser. Could you please recommend me what's the issue? Many thanks Just after redirecting on ActionFilterAttribute function the implications of clearing all headers are losing all session facts and info in TempData storage. https://iowa-bookmarks.com/story16818691/the-definitive-guide-to-%E3%82%AA%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%B3%E3%82%AB%E3%82%B8%E3%83%8E-%E4%BB%AE%E6%83%B3%E9%80%9A%E8%B2%A8