.net Web.config转换添加树

我想在发布时将以下内容添加到web配置中：

<system.webServer>
    <httpProtocol>
        <customHeaders>
            <add name="Strict-Transport-Security" value="max-age=16070400; includeSubDomains" xdt:Transform="Insert" />
        </customHeaders>
    </httpProtocol>
</system.webServer>

然而，这似乎不是正确的方式

---

是否有更正确的方法在转换上构建元素树？

将空的

节点添加到web.config中是有效的，因为转换是插入

并尝试删除xmlns=attributes？
  <httpProtocol>
    <customHeaders>
    </customHeaders>
  </httpProtocol>

<?xml version="1.0">
<configuration>
  <system.webServer>
    <httpProtocol />
  </system.webServer>
</configuration>

<?xml version="1.0">
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <system.webServer>
    <httpProtocol>
      <customHeaders xdt:Transform="Insert">
        <add name="Strict-Transport-Security" value="max-age=16070400; includeSubDomains" />
      </customHeaders>
    </httpProtocol>
  </system.webServer>
</configuration>

<?xml version="1.0">
<configuration>
  <system.webServer>
    <httpProtocol>
      <customHeaders>
        <add name="Strict-Transport-Security" value="max-age=16070400; includeSubDomains" />
      </customHeaders>
    </httpProtocol>
  </system.webServer>
</configuration>