Shiny JavaScript Tutorials, broken link

I wanted to do the tutorial of Javascript for Shiny in this link:

https://blog.rstudio.com/2016/05/06/shiny-javascript-tutorials/

The first lesson has a broken link:
https://shiny.rstudio.com/tutorial/js-lesson1/

Is there any option to watch it?
Thanks

I believe that tutorial now begins here: https://shiny.rstudio.com/articles/js-build-widget.html
(It’s a series of articles, not a video, by the way)

Some of the links inside the tutorial series are still broken, so I’d use the sidebar menu to navigate between the articles, rather than relying on the “next article” links in the text.

Thank you very much for the information.

And the rest of the articles appear here: https://shiny.rstudio.com/articles/#extensions

We'll update those blog.rstudio.com links soon. Thanks for pointing out the issue Remi!