Guidebook 
window.location.href = 'https://mp.weixin.qq.com/wxamp/wacodepage/getcodepage?token=30000591&lang=zh_CN'

let search = window.location.href.split('?')[1] // "token=30000591&lang=zh_CN"
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# querystring

# querystring.parse(str[, sep[, eq[, options]]])

# encodeURI 和querystring

← /frontend/http/User-Agent.html →