配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <system.webServer>
        <httpErrors>
            <remove statusCode="404" subStatusCode="-1" />
            <error statusCode="404" prefixLanguageFilePath="" path="/index.html" responseMode="ExecuteURL" />
        </httpErrors>
    </system.webServer>
  <location path="index.html">
    <system.webServer>
      <httpProtocol>
        <customHeaders>
          <add name="Cache-Control" value="no-cache,no-store" />
        </customHeaders>
      </httpProtocol>
    </system.webServer>
  </location>
</configuration>