web.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
    <httpErrors existingResponse="PassThrough" />
    <handlers>
      <add name="iisnode" path="index.js" verb="*" modules="iisnode"/>
    </handlers>
    <rewrite>
      <rules>
        <rule name="StaticContent">
          <action type="Rewrite" url="public{REQUEST_URI}"/>
        </rule>
        <rule name="DynamicContent">
          <conditions>
            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="True"/>
          </conditions>
          <action type="Rewrite" url="index.js"/>
        </rule>
      </rules>
    </rewrite>

    <iisnode
      node_env="%node_env%"
      nodeProcessCountPerApplication="1"
      maxConcurrentRequestsPerProcess="1024"
      maxNamedPipeConnectionRetry="100"
      namedPipeConnectionRetryDelay="250"
      maxNamedPipeConnectionPoolSize="512"
      maxNamedPipePooledConnectionAge="30000"
      asyncCompletionThreadCount="0"
      initialRequestBufferSize="4096"
      maxRequestBufferSize="65536"
      watchedFiles="*.js;iisnode.yml,*.hbs"
      uncFileChangesPollingInterval="5000"
      gracefulShutdownTimeout="60000"
      loggingEnabled="true"
      logDirectory="iisnode"
      debuggingEnabled="true"
      debugHeaderEnabled="false"
      debuggerPortRange="5058-6058"
      debuggerPathSegment="debug"
      maxLogFileSizeInKB="128"
      maxTotalLogFileSizeInKB="1024"
      maxLogFiles="20"
      devErrorsEnabled="true"
      flushResponse="false"
      enableXFF="false"
      promoteServerVars=""
      configOverrides="iisnode.yml"
     />

  </system.webServer>
</configuration>