我有一个angular 4和一个节点应用程序。我将它们与HTTP服务连接。现在，我将它们放在IP地址为192.168.x.y的本地服务器上。我通过以下方式启动我的角度应用程序：<form action="">
<div>
<input type="radio" name="poke-name" class="ButtonState" id="Ash" value="-1" />
<label class="Button" for="Ash">Ash</label>
<input type="radio" name="poke-name" class="ButtonState" id="Misty" value="-2" />
<label class="Button" for="Misty">Misty</label>
<input type="radio" name="poke-name" class="ButtonState" id="Brock" value="-3" />
<label class="Button" for="Brock">Brock</label>
<input type="radio" name="poke-name" class="ButtonState" checked id="Oak" value="-4" />
<label class="Button" for="Oak">Oak</label>
<input type="radio" name="poke-name" class="ButtonState" id="Jessie" value="-5" />
<label class="Button" for="Jessie">Jessie</label>
<input type="radio" name="poke-name" class="ButtonState" id="James" value="-6" />
<label class="Button" for="James">James</label>
<input type="radio" name="poke-name" class="ButtonState" id="Giovanni" value="-7" />
<label class="Button" for="Giovanni">Giovanni</label>
</div>
<br> <br>
<div>
<input type="radio" name="poke-type" class="ButtonState" id="Pickachu" value="1" />
<label class="Button" for="Pickachu">Pickachu</label>
<input type="radio" name="poke-type" class="ButtonState" checked id="Bulbasaur" value="2" />
<label class="Button" for="Bulbasaur">Bulbasaur</label>
<input type="radio" name="poke-type" class="ButtonState" id="Charmander" value="3" />
<label class="Button" for="Charmander">Charmander</label><input type="radio" name="poke-type" class="ButtonState" id="Squirtle" value="4" />
<label class="Button" for="Squirtle">Squirtle</label><input type="radio" name="poke-type" class="ButtonState" id="Butterfree" value="5" />
<label class="Button" for="Butterfree">Butterfree</label><input type="radio" name="poke-type" class="ButtonState" id="Pidgeotto" value="6" />
<label class="Button" for="Pidgeotto">Pidgeotto</label><input type="radio" name="poke-type" class="ButtonState" id="Arbok" value="7" />
<label class="Button" for="Arbok">Arbok</label><input type="radio" name="poke-type" class="ButtonState" id="Sandshrew" value="8" />
<label class="Button" for="Sandshrew">Sandshrew</label><input type="radio" name="poke-type" class="ButtonState" id="Jigglypuff" value="9" />
<label class="Button" for="Jigglypuff">Jigglypuff</label><input type="radio" name="poke-type" class="ButtonState" id="Vulpix" value="10" />
<label class="Button" for="Vulpix">Vulpix</label>
</div>
<br>
<input type="button" value="Go" onclick="myfunction()" />
</form>，其中151.233.t.z是我的公共IP。最后，我通过以下方式运行我的应用：
ng serve --port 8080 --host 192.168.x.y --public 151.233.t.z和pm2 start npm -- start。（我的节点服务器正在侦听端口3000），然后在HTTP服务中，我将HTTP请求发送到{ {1}}。当我在本地系统上的151.233.t.z：8080上打开浏览器时，一切正常。但是当我在网络外部尝试时，我只能看到我的角度应用程序，并且当我单击按钮发送登录请求后，它就无法正常工作！