【报Bug】video 默认浏览器，微信H5页面无法播放

操作步骤：

    <view>  
        <view class="uni-padding-wrap uni-common-mt">  
            <view>  
                <video id="myVideo" :autoplay="true" src="https://mp4.vjshi.com/2018-12-28/1083f3db90334f86e3fc3586b4472914.mp4"  
                    @error="videoErrorCallback" :danmu-list="danmuList" enable-danmu danmu-btn controls></video>  
            </view>  
            <!-- #ifndef MP-ALIPAY -->  
            <view class="uni-list uni-common-mt">  
                <view class="uni-list-cell">  
                    <view>  
                        <view class="uni-label">弹幕内容</view>  
                    </view>  
                    <view class="uni-list-cell-db">  
                        <input v-model="danmuValue" class="uni-input" type="text" placeholder="在此处输入弹幕内容" />  
                    </view>  
                </view>  
            </view>  
            <view class="uni-btn-v">  
                <button @click="sendDanmu" class="page-body-button">发送弹幕</button>  
            </view>  
            <!-- #endif -->  
        </view>  
    </view>  
</template>  

<script>  
 export default {  
     data() {  
         return {  
             src: '',  
             danmuList: [{  
                     text: '第 1s 出现的弹幕',  
                     color: '#ff0000',  
                     time: 1  
                 },  
                 {  
                     text: '第 3s 出现的弹幕',  
                     color: '#ff00ff',  
                     time: 3  
                 }  
             ],  
             danmuValue: ''  
         }  
     },  
     onReady: function(res) {  
         // #ifndef MP-ALIPAY  
         this.videoContext = uni.createVideoContext('myVideo')  
         // #endif  
     },  
     methods: {  
         sendDanmu: function() {  
             this.videoContext.sendDanmu({  
                 text: this.danmuValue,  
                 color: this.getRandomColor()  
             });  
             this.danmuValue = '';  
         },  
         videoErrorCallback: function(e) {  
             // uni.showModal({  
             //     content: e.target.errMsg,  
             //     showCancel: false  
             // })  
             console.log(e)  
         },  
         getRandomColor: function() {  
             const rgb = []  
             for (let i = 0; i < 3; ++i) {  
                 let color = Math.floor(Math.random() * 256).toString(16)  
                 color = color.length == 1 ? '0' + color : color  
                 rgb.push(color)  
             }  
             return '#' + rgb.join('')  
         }  
     }  
 }  
</script>  

<style scoped>  

</style>```

预期结果：

wu

实际结果：

点击播放报错