【报Bug】webview使用uniapp项目开发使用uni.postMessage发送消息微信webview 控制台接受不到消息

示例代码：

 <button class="btn btn-red" type="button" id="postMessage">postMessage</button>  

<script type="text/javascript" src="https://unpkg.com/@dcloudio/uni-webview-js@0.0.1/index.js"></script>  
        <script type="text/javascript">  
            document.addEventListener('UniAppJSBridgeReady', function() {  
                document.getElementById('postMessage').addEventListener('click', function() {  
                    console.log("1234.");  
                    uni.postMessage({  
                        data: {  
                            action: 'message'  
                        }  
                    });  
                });  
            });  
        </script>  

小程序部分代码段：<web-view :src="url" @message="getMessage"></web-view>  
getMessage(event) {  
                console.log("event.");  
                uni.showModal({  
                    content: JSON.stringify(event.detail),  
                    showCancel: false  
                });  
            }  

操作步骤：

 <button class="btn btn-red" type="button" id="postMessage">postMessage</button>  

<script type="text/javascript" src="https://unpkg.com/@dcloudio/uni-webview-js@0.0.1/index.js"></script>  
        <script type="text/javascript">  
            document.addEventListener('UniAppJSBridgeReady', function() {  
                document.getElementById('postMessage').addEventListener('click', function() {  
                    console.log("1234.");  
                    uni.postMessage({  
                        data: {  
                            action: 'message'  
                        }  
                    });  
                });  
            });  
        </script>  

小程序部分代码段：<web-view :src="url" @message="getMessage"></web-view>  
getMessage(event) {  
                console.log("event.");  
                uni.showModal({  
                    content: JSON.stringify(event.detail),  
                    showCancel: false  
                });  
            }  

预期结果：

小程序控制台收到postmessage消息

实际结果：

没反应