<rewrite>
        <rules>
            <rule name="HTTP to HTTPS redirect" stopProcessing="true">
              <match url="(.*)" />
              <conditions>
                <add input="{HTTPS}" pattern="off" />
              </conditions>
              <action type="Redirect" url="https://{HTTP_HOST}{REQUEST_URI}"   redirectType="Found" />
            </rule>
        </rules>
</rewrite>

<add input="{HTTPS}" pattern="on" />

<add input="{HTTPS}" pattern="off" />

<rewrite>
   <rules>
      <rule name="HTTPS Rule behind AWS Elastic Load Balancer Rule" stopProcessing="true">
         <match url="^(.*)$" ignoreCase="false" />
         <conditions>
            <add input="{HTTP_X_FORWARDED_PROTO}" pattern="^http$" ignoreCase="false" />
         </conditions>
         <action type="Redirect" url="https://{SERVER_NAME}{URL}" redirectType="Found" />
      </rule>
   </rules>
</rewrite>