const isAlipay = window.my && navigator.userAgent.indexOf('AlipayClient') > -1 export function initWebviewApi (readyCallback) { if (!isAlipay) { return } document.addEventListener('DOMContentLoaded', readyCallback) const { navigateTo, navigateBack, switchTab, reLaunch, redirectTo, postMessage, getEnv } = window.my return { navigateTo, navigateBack, switchTab, reLaunch, redirectTo, postMessage, getEnv } }