API 403 Error when using IIS as reverse proxy

[isaacnicholas]

Describe the bug
When using IIS as a reverse proxy, I keep on getting the following 403 error from the api request. The ui page and all the css/images load fine. This brings up an error message saying that there was an error connecting to Restreamer Core. The site works fine if I directly go to server:8080. I don't think it's an IIS issue, but there's a chance a rewrite is broken somewhere.

{"code":403,"message":"Forbidden","details":["Forbidden"]}

To Reproduce
Below is my current web.config file. I've been playing with different variables but to no avail.

<configuration>
  <system.webServer>
    <proxy enabled="true" preserveHostHeader="false" />
    
    <rewrite>
      <rules>
        <rule name="RestreamerProxy" stopProcessing="true">
          <match url="^restreamer/(.*)" />
          <conditions>
             <add input="{CACHE_URL}" pattern="^(.+)://" />
          </conditions>
          <action type="Rewrite" url="{C:1}://127.0.0.1:8080/{R:1}" />
          
          <serverVariables>
            <set name="HTTP_X_FORWARDED_PROTO" value="https" />
            
            <set name="HTTP_ORIGIN" value="http://127.0.0.1:8080" />
            
            <set name="HTTP_REFERER" value="http://127.0.0.1:8080/" />
          </serverVariables>
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>

Expected behavior
API should return the same 200 error as when I go to 8080 directly.

Screenshots

Desktop (please complete the following information):

• OS: Windows Server 2022 Standard
• IIS: 10.0.20348.1

Additional context
Add any other context about the problem here.

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[utilsites]

Why you did reverse proxy on Windows IIS, you are running Restreamer in docker on windows server too?
Reverse proxy with nginx dock container in Linux works well.

Maybe your problem has to do with HTTPs? You should share the ssl certificates between reverse proxy and restreamer.