HarmonyOS鸿蒙Next中WelinkH5无法自动登录

HarmonyOS鸿蒙Next中WelinkH5无法自动登录 welink轻应用嵌入了H5，企业已经进行了第三方对接，首页地址、接口权限和后台管理地址均已配置，client_id也是正确的，在H5上引入了 https://open-doc.welink.huaweicloud.com/docs/jsapi/2.0.12/hwh5-cloudonline.js，但是调用获取code方法时提示没有对应的方法，代码如下

async isWeLinkLogin(companyCode) {
    const companyInfo = await getCompanyInfo(companyCode)
    if (companyInfo && companyInfo.wlClientId) {
        const ua = navigator.userAgent.toLowerCase();
        if (ua.indexOf('welink') === -1) {
            console.log('非 WeLink 环境，展示普通登录');
            return;
        }
        try {
            // ✅ 先加载 SDK
            const HWH5Instance = await this.loadWeLinkSDK()
            console.log('SDK 加载成功:', HWH5Instance)
            const H = HWH5Instance || (typeof HWH5 !== 'undefined' ? HWH5 : undefined) || (typeof window !== 'undefined' ? window.HWH5 : undefined)
            if (!H) {
                console.log('WeLink SDK 对象不存在')
                return
            }
            console.log('HWH5 对象方法:', Object.keys(H))
            let data
            if (H && H.getAuthorizationCode) {
                data = await H.getAuthorizationCode()
            } else if (H && H.getAuthCode) {
                const maybe = H.getAuthCode()
                if (maybe && maybe.then) {
                    data = await maybe
                } else {
                    data = await new Promise((resolve, reject) => {
                        try {
                            H.getAuthCode(res => resolve(res))
                        } catch (e) {
                            reject(e)
                        }
                    })
                }
            } else {
                console.log('WeLink SDK 对象不包含 getAuthorizationCode/getAuthCode', H)
                return
            }
            const authCode = data && (data.code || data.authCode || data.authorizationCode)
            if (authCode) {
                let res = await scanLogin({
                    companyCode: companyInfo?.companyCode || this.companyCode.code,
                    code: authCode
                })
                this.handleLogin(res)
            } else {
                console.log('未获取到授权码，无法进行自动登录')
            }
        } catch (error) {
            console.log('获取异常', error)
        }
    } else {
        return
    }
},
loadWeLinkSDK() {
    return new Promise((resolve, reject) => {
        // 如果已经存在，直接返回
        if (window.HWH5 || (typeof HWH5 !== 'undefined')) {
            resolve(window.HWH5 || HWH5)
            return
        }
        // 如果没有通过 script 标签引入，才动态加载
        const existingScript = document.querySelector('script[src*="hwh5-cloudonline"]')
        if (existingScript) {
            existingScript.addEventListener('load', () => {
                resolve(window.HWH5 || HWH5)
            })
            return
        }
        const script = document.createElement('script')
        script.src = 'https://open-doc.welink.huaweicloud.com/docs/jsapi/2.0.12/hwh5-cloudonline.js'
        script.onload = () => {
            console.log('WeLink SDK 动态加载完成')
            resolve(window.HWH5 || (typeof HWH5 !== 'undefined' ? HWH5 : undefined))
        }
        script.onerror = () => {
            reject(new Error('WeLink SDK 加载失败'))
        }
        document.head.appendChild(script)
    })
},

执行代码一直提示WeLink SDK 对象不包含 getAuthorizationCode/getAuthCode