关于IntersectionObserver在h5端组件中无法观察到元素问题咨询

在使用uni.createIntersectionObserver观察指定元素是否出现在屏幕中时，实现效果再小程序端可以正常生效，在h5端提示xxx is not found. Intersection observer will not trigger.

<view class="sImage">  
        <image :src="src" :mode="mode"></image>  
    </view>

let intersectionObserver = null;  
    export default {  
        name: "sImage",  
        props: {  
            src: {  
                type: String,  
                default: () => ''  
            },  
            mode: {  
                type: String,  
                default: () => 'aspectFill'  
            },  
            bottomDistance: { // px  
                type: Number,  
                default: () => 50  
            }  
        },  
        data() {  
            return {  

            };  
        },  
        mounted() {  
            this.init()  
        },  
        beforeUnmount() {  
            intersectionObserver?.disconnect()  
        },  
        methods: {  
            init() {  
                intersectionObserver = uni.createIntersectionObserver(this);  
                intersectionObserver.relativeToViewport({  
                    bottom: 50  
                }).observe('.sImage', (res) => {  
                    console.log('observe:', res)  
                })  
            }  
        }  
    }

以下分别为h5和小程序执行的结果