Hosting WebChat from a different domain

It is possible to deploy the WebChat on another server from the one where the website is deployed. When doing this, the server needs to provide a Access-Control-Allow-Origin header set to either the domain that the main website is running on, or * to allow all domains to access the files. If this is omitted, this will cause CORS issues. Example of a web.config that sets the allowed origin to *:

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XML
<?xml version="1.0" encoding="UTF-8"?>
 <configuration>
    <system.webServer>
        <httpProtocol>
            <customHeaders>
                <add name="Access-Control-Allow-Origin" value="*"/>
            </customHeaders>
        </httpProtocol>
    </system.webServer>
 </configuration>