WEBVTT
leading space
00:00:00.000 --> 00:00:01.000
text0
trailing space
00:00:00.000 --> 00:00:01.000
text1
-- >
00:00:00.000 --> 00:00:01.000
text2
->
00:00:00.000 --> 00:00:01.000
text3
00:00:00.000 --> 00:00:01.000
text4
WEBVTT
leading space
00:00:00.000 --> 00:00:01.000
text0
trailing space
00:00:00.000 --> 00:00:01.000
text1
-- >
00:00:00.000 --> 00:00:01.000
text2
->
00:00:00.000 --> 00:00:01.000
text3
00:00:00.000 --> 00:00:01.000
text4