doc/devdocs/modules/launcher/plugins/uri.md
The URI Plugin, as the name suggests is used to directly run the URI that has been entered by the user as a query. This is done by parsing the entry and validating the URI, followed by executing it.
URI ParserExtendedUriParser.cs file tries to parse the user input and returns a System.Uri result by using the UriBuilder.:, . or :/.URI ResolverUriResolver.cs file returns true for Valid hosts.