ASP.NET web.config configuration for Single Page Application (AngularJS) running on IIS with OwinHttpHandler

web.config

<?xml version="1.0"?>
<configuration>

    <system.web>
      <compilation debug="true" targetFramework="4.5" />
      <httpRuntime targetFramework="4.5" />
    </system.web>
  <system.webServer>
    <rewrite>
      <rules>
        <rule name="AngularJS Routes" stopProcessing="true">
          <match url=".*" />
          <conditions logicalGrouping="MatchAll">
            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
            <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
            <add input="{REQUEST_URI}" pattern="^/(api)" negate="true" />
            <add input="{REQUEST_URI}" pattern="^/(scripts)" negate="true" />
            <add input="{REQUEST_URI}" pattern="^/(styles)" negate="true" />
            <add input="{REQUEST_URI}" pattern="^/(maps)" negate="true" />
            <add input="{REQUEST_URI}" pattern="^/(assets)" negate="true" />
          </conditions>
          <action type="Rewrite" url="/" />
        </rule>
      </rules>
    </rewrite>
    <handlers>
      <remove name="StaticFile"/>
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <remove name="OPTIONSVerbHandler" />
      <remove name="TRACEVerbHandler" />
      <add name="Owin" verb="" path="*" type="Microsoft.Owin.Host.SystemWeb.OwinHttpHandler, Microsoft.Owin.Host.SystemWeb"/>
    </handlers>
    <modules runAllManagedModulesForAllRequests="true" />
  </system.webServer>
</configuration>