Add subtitles to embedded video

Hi,

I’m trying to add subtitles to embedded YouTube video, but I’m not sure where to put the extra string.

I’m pasting the website URL here, since I’m a little bit annoyed that a google search with the site name refers to this forum: https://just-paste.it/kCyCISgP28

Here’s my code and what I did:

embedded video code:

<figure class=”wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio”><div class=”wp-block-embed__wrapper”>

</div></figure>

instructions from Google:

Make captions automatically appear for an embedded video by adding “&cc_load_policy=1” to the video’s embed code.

You can also choose a caption language for the embedded video. To specify the caption language for the video that you’d like to embed, just add “&cc_lang_pref=fr&cc_load_policy=1” to the video’s embed code.

“cc_lang_pref” sets the language for the captions shown in the video.
“cc_load_policy=1” turns captions on by default.
“fr” represents the language code for French. You can look up 2-letter language codes in the ISO 639-1 standard.

so I added “&cc_lang_pref=bg&cc_load_policy=1″ by glueing it directly to the video URL, but that doesn’t work, where should I put it?

<figure class=”wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio”><div class=”wp-block-embed__wrapper”>

</div></figure>

That breaks the video.