rewrites, setting response cookie "SameSite=none" issue

Question

We have a rewrite requirement in our application that sets a response cookie to "SameSite=none". This is the code block that we needed to comment out to partially get the application to run.

   <!--<rewrite>  
          <outboundRules>  
              <rule name="Add SameSite" preCondition="No SameSite">  
                  <match serverVariable="RESPONSE_Set_Cookie" pattern=".*" negate="false" />  
                  <action type="Rewrite" value="{R:0}; SameSite=none" />  
                  <conditions>  
                  </conditions>  
              </rule>  
              <preConditions>  
                  <preCondition name="No SameSite">  
                      <add input="{RESPONSE_Set_Cookie}" pattern="." />  
                      <add input="{RESPONSE_Set_Cookie}" pattern="; SameSite=none" negate="true" />  
                  </preCondition>  
              </preConditions>  
          </outboundRules>  
      </rewrite>-->  

I've been working on this for a day and this is what I've done so far: ![80724-updaterewrite.png][1]![80725-then.png][2] [1]: /api/attachments/80724-updaterewrite.png?platform=QnA [2]: /api/attachments/80725-then.png?platform=QnA we're trying to replicate how we'd do this in IIS / or Apache but thus far we haven't been successful with App Services and Application Gateway in Azure. Any help would be really appreciated.