2.md

index.html

<form action="jsp/welcome-json.jsp" name="form1" target="form2">
  <label>名前</label><input type="text" class="name" value="たろう" />
  <p data-h5-bind="message">更新対象</p>
  <input type="submit" />
</form>

<form action="jsp/welcome-json.jsp" name="form2" target="form1">
  <label>名前</label><input type="text" class="name" value="じろう" />
  <p data-h5-bind="message">更新対象</p>
  <input type="submit" />
</form>