WebVTT file with a text header is not being displayed and cues with identifiers are also not shown.
Not working sample .vtt file:
WEBVTT - This file has cues. 14 00:01:14.815 --> 00:01:18.114 - What? - Where are we now? 15 00:01:18.171 --> 00:01:20.991 - This is big bat country.
Working sample .vtt file:
WEBVTT 00:01:14.815 --> 00:01:18.114 - What? - Where are we now? 00:01:18.171 --> 00:01:20.991 - This is big bat country.