Embed video with captions
i would like to know if there is a way to embed a video with its captions via iframe.
This is the iframe video embed code
<div style="position:relative; padding-bottom:56.25%; overflow:hidden;"><iframe src="//content.jwplatform.com/players/xX2xNQ5O-0rzMSYnV.html" width="100%" height="100%" frameborder="0" scrolling="auto" allowfullscreen style="position:absolute;"></iframe></div>
And here are the captions https://content.jwplatform.com/tracks/928Lmkh7.vtt how can i include the captions into the iframe.