To permit or block a selection of URLs in Chrome managed config, you need to add the URLs to the relevant list. The format for this is as follows:
[scheme://][.]host[:port][/path][@query]
Setting multiple URLs in succession would look like this:
["http://www.example.com", "https://www.example.com", "http://*", "https://example.com?sda"]
More format examples can be found here, but in a nutshell:
*
targets everything. This is useful for preventing access to everything via a blocklist, then explicitly allowlisting certain domains or URLs192.0.2.1
targets this specific IP.domain.com
explicitly blocks the root domain, but not its subdomainsdomain.com
blocks everything in that domainIt's important to note that some EMMs require brackets for this to work properly, which is why I used them in the multiple URLs example. Google's documentation doesn't mention this, but it's a crucial step.