web.config

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

  <appSettings>
    <clear />
  </appSettings>

  <system.web>
    <httpRuntime maxRequestLength="102400" maxUrlLength="102400" maxQueryStringLength="10000" requestValidationType="System.Web.Util.RequestValidator" />

    <httpModules>
      <clear />
    </httpModules>

    <httpHandlers>
      <clear />
    </httpHandlers>
  </system.web>

  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <rewrite>
      <rules>
        <rule name="Redirect to https" stopProcessing="true">
          <match url=".*" />
          <conditions>
            <add input="{HTTPS}" pattern="off" ignoreCase="true" />
          </conditions>
          <action type="Redirect" url="https://{HTTP_HOST}{REQUEST_URI}" redirectType="Permanent" appendQueryString="false" />
        </rule>
        <rule name="Redirecting .html ext" enabled="true">
          <match url="^(.*)[.]html"/>
          <conditions logicalGrouping="MatchAny">
            <add input="{URL}" pattern="(.*)[.]html"/>
          </conditions>
          <action type="Redirect" url="{ToLower:{R:1}}"/>
        </rule>
        <rule name="Hide .html ext">
          <match ignoreCase="true" url="^(.*)"/>
          <conditions>
            <add input="{REQUEST_FILENAME}.html" matchType="IsFile"/>
          </conditions>
          <action type="Rewrite" url="{R:0}.html"/>
        </rule>
        <rule name="index" enabled="true" stopProcessing="true">
          <match ignoreCase="false" url="^$" />
          <action type="Redirect" url="introduction" />
        </rule>
      </rules>
    </rewrite>
    <httpProtocol>
      <customHeaders>
        <add name="Cache-Control" value="no-cache" />
      </customHeaders>
    </httpProtocol>
    <staticContent>
      <remove fileExtension=".json" />
      <mimeMap fileExtension=".json" mimeType="application/json" />
      <remove fileExtension=".woff" />
      <mimeMap fileExtension=".woff" mimeType="application/x-font-woff" />
    </staticContent>
    <httpErrors errorMode="Custom" defaultResponseMode="File">
      <remove statusCode="404" />
      <error statusCode="404" path="40x.html" />
    </httpErrors>
  </system.webServer>

</configuration>