Style is not applied, and .srt is not shown

[arLevi]

I'm using jQuery 3.7.1 with Firefox 138.0.1 and I downloaded a subtitle from Youtube, snippet:

# file my.srt
[04:18.960 --> 04:20.960]  abc
[04:20.960 --> 04:21.960]  def
[04:21.960 --> 04:23.960]  ghi

And

# file: my.vtt
14:16.840 --> 14:22.740
abc

14:23.840 --> 14:26.220
def

14:32.560 --> 14:34.540
ghi

HTML is:

<video id="video">
                <source src="my_video.mp4">
                <track label="SRT test" kind="subtitles" srclang="en" src="my.srt" default>
                <track label="VTT test" kind="subtitles" srclang="en" src="my.vtt">
</video>

1. Still the only subtitles it shows is the my.vtt when I switch to the .srt subtitles just disappear....
2. The style is being applied behind the <video> tag, don't see how to attach an image here
3. I wonder why the library is using $.ajax ?