IIS Reverse Proxy Setting

Hi, 

I have a https site on IIS requesting resources from ahttp-only backend server. There is no SSL certificate in the backend server. 

I encountered failure for requesting https/http resources from a https site. 

I would like to know if there is any reverse proxy setting with ARR that can resolve this problem?

For instance,

The client application url : https://www.abc.com/login

The requesting resource: https://www.abc.com:8080/api/login

The working api: http://www.abc.com:8080/api/login 

I have tried adding the following,but not working

    <rule name="web" stopProcessing="true">
                    <match url="^(.*)" />
                    <conditions>
                        <add input="{HTTP_HOST}" pattern="^abc.com$" />
                    </conditions>
                    <action type="Rewrite" url="http://abc.com/{R:1}" />
                </rule>

Thanks a lot.

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