How to save subtitles from this site?

[UriF]

You can view video. You can even download CLEAN video (using extensions like VideoDowmloadHelper) but I believe they use (java) script to view subtitles(subtitles are not built-n). Therefore you have option to turn-of subtitles or select available language for subtitles.

https://javsubtitle.com/

 

[UriF]

After small research I found out that they hide subtitles in vtt format. I was able to get this file using Chrome Development Tools by analyzing html file in run-time (copy element to Notepad (or any text editor) and and extract src WITH a session variables). Then copy/paste in new window. Is exists any tool/extension which do it (extract this link) automatically?