Laravel，amp-mustache成功/错误消息未显示

Question

服务器响应示例：

return response()->json(['message' => __('messages.g-captcha')], 422);

return response()->json(
                    ['message' => 'Success!'], 200);

提交表单时，会出现一个带有相应颜色的块，但其中没有任何消息

<form method="post" action-xhr="{{route('amp.synonyms.submittingEditForm')}}" target="_top">
<div class="p-3 mt-2 rounded bg-teal-200 text-teal-800 mb-3" submit-success>
 <template type="amp-mustache" id="amp-template-custom-success">
    @{{message}}
 </template>
</div>
<div class="p-3 mt-2 rounded bg-red-200 text-red-800 mb-3" submit-error>
 <template type="amp-mustache" id="amp-template-custom-error">
   @{{message}}
 </template>
</div>
<fieldset>
     ...
</fieldset></form>