I just need this option in my segment playlist header.  This is all.

```
#EXTM3U
#EXT-X-TARGETDURATION:10
#EXT-X-ALLOW-CACHE:YES
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:1

```
Option to include '#EXT-X-ALLOW-CACHE:YES' in HLS SubtitlesPlaylist
This is a GitHub Issue
repo:Bento4
owner:axiomatic-systems
Title : Option to include '#EXT-X-ALLOW-CACHE:YES' in HLS SubtitlesPlaylist
Issue date:

--- start body ---
I just need this option in my segment playlist header.  This is all.

```
#EXTM3U
#EXT-X-TARGETDURATION:10
#EXT-X-ALLOW-CACHE:YES
#EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:1

```
--- end body ---
