The goal of CSOBam is to be able to download data that are displayed publically on their website. Currently at https://www.csobam.cz/portal/asset-management/produkty-a-sluzby/aktualni-hodnoty-a-vykonnost.
This is a basic example which downloads the first page of funds' performance.
library(CSOBam)
funds <- managed_funds()
Downloading other pages have not worked, because you cannot load the content on specific page e.g. 2 without working around "cookies" somehow. One idea is to load homepage and then extract all JSON ISINs which are passed in some tags in HTML.
Essentially, abandoned for now.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.