You can add this local sharepoint site into the Domain Filters under the agent configuration.
Just as the screenshot below:
Here is an example of the syntax of the filter:
-sales.symantec.com,+*symantec.com,*
HTTP requests to sales.symantec.com are ignored, and all of the requests that are sent to any other symantec.com domain are inspected. The last asterisk in the filter filters out all other domains like www.xyz.com.