I am investigating a project where a site that has already been built needs to be integrated into a wordpress site that is currently under development. Essentially the preexisting site consists of two sections / pages. The first is a simple list with links to the second which is an interactive chart. FWIW that stack was developed using Angular JS on the client.
Both sides are cooperating / in partnership, so some work can be done on each side.
I suspect I could try some sort of iframe type of plugin, or perhaps a custom page hosted off of the same server as the wordpress site.
Honestly I know little about WP and am just looking to get pointed in the right direction. Anything is appreciated.