Hide the .html extension Azure/IIS websites

web.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
    <rewrite>
      <rules>
        <rule name="RemoveDotHtml" enabled="true" stopProcessing="true">
          <match url="(.*)\.html" />
          <action type="Redirect" url="{R:1}" />
        </rule>
        <rule name="AddDotHtml" enabled="true">
          <match url=".*" negate="false" />
          <conditions>
            <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
            <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
            <add input="{URL}" pattern="(.*)\.(.*)" negate="true" />
          </conditions>
          <action type="Rewrite" url="{R:0}.html" />
        </rule>
      </rules>
    </rewrite>
  </system.webServer>
</configuration>