Ответ 1
Вам нужно иметь две конечные точки: одну для HTTP и другую для HTTPS. Он должен работать нормально.
<bindings>
<customBinding>
<binding name="customBindingHTTP">
<binaryMessageEncoding />
<httpTransport />
</binding>
<binding name="customBindingHTTPS">
<binaryMessageEncoding />
<httpsTransport />
</binding>
</customBinding>
</bindings>
<services>
<service name="MyWCFService">
<endpoint address=""
binding="customBinding"
bindingConfiguration="customBindingHTTP"
contract="MyWCFService" />
<endpoint address=""
binding="customBinding"
bindingConfiguration="customBindingHTTPS"
contract="MyWCFService" />
<endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />
</service>
</services>