Run Visual Studio and/or IIS Express as Administrator
Change the file:
MyWebsite\.vs\MyWebsite\config\applicationhost.config
Add an extra binding ‘*.{port}.*’, without altering/removing the localhost port/domain combination
(if you remove the localhost domain, visual studio creates a whole new site config ignoring your changes)

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <!-- ... -->
    <system.applicationHost>
        <sites>
            <site name="MyWebsite" id="9">
                <application path="/" applicationPool="Clr4IntegratedAppPool">
                    <virtualDirectory path="/" physicalPath="C:\workspace\MyWebsite\public" />
                </application>
                <bindings>
                    <binding protocol="http" bindingInformation="*:5105:localhost" />
                    <binding protocol="https" bindingInformation="*:44300:localhost" />
					<binding protocol="http" bindingInformation="*:5105:*" />
                    <binding protocol="https" bindingInformation="*:44300:*" />
                </bindings>
            </site>
            <!-- ... -->
        <sites>
    </system.applicationHost>
    <!-- ... -->
</configuration>

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