IIS Rewrite causing redirect issues - iis

Question

I have the following rules in IIS.
<rules>
<rule name="ReverseProxyInboundRule1" stopProcessing="true">
<match url="(.*)" />
<action type="Rewrite" url="http://localhost:3000/{R:1}" />
</rule>
</rules>
My web application internally calls another domain www.anotherdomain.com/somepage. My problem is while it redirects, it changes the url to www.mycurrentdomain.com/somepage which obviously results in a 404 page. Can some one please help me to write the correct rule.
Note - the redirect is happening from the application code res.redirect('www.anotherdomain.com/somepage')

Answer 1

We need to handle outbound rules to apply the URL rewrite rule rather than use inbound rules. Here is an example of stopping the internally call redirecting to outside domain(https://www.bing.com). You can change it according to your actual needs.
<system.webServer>
<rewrite>
<outboundRules>
<rule name="MyLocationRule" preCondition="IsRedirection">
<match serverVariable="RESPONSE_Location" pattern="https://www.bing.com/" />
<action type="Rewrite" value="http://{HTTP_HOST}/webform2.aspx" />
</rule>
<preConditions>
<preCondition name="IsRedirection">
<!--301,302 Url redirection http status code.-->
<add input="{RESPONSE_STATUS}" pattern="3\d\d" />
</preCondition>
</preConditions>
</outboundRules>
</rewrite>
</system.webServer>
Feel free to let me know if the problem still exists.