I’m currently trying to implement the following feature on my site -
work case detail pages appear as sidebars with its own url.
Here is an example: https://area17.com/
Concerning that topic I found this post:
Unfortunately, the suggested solutions seem not to work.
The example website is done using lots of custom unconventional JavaScript, not by a simple jQuery load function call. Furthermore, the pages seem to be highly optimized so it appears to be loaded in an instant.