Roku Media play cannot open m3u8

The Roku Media Player app does support M3U playlists. I don't know about the 8 at the end of the file name, though. But if it sees the playlist then it's probably supported. Since it won't load the URL, that tells me the Roku cannot play the media at the linked site. I would need to know the media contents to advise if it's supported by Roku.

I just looked at the file contents at the link, and it appears that it's opening another playlist file on the site. I don't think Roku supports opening a playlist within a playlist, but I've never done so with my playlists, as they're all for local files.