测试链接https://pattern.swarma.org/mobile/activity/22?from=wechat

在PC版本/MAC版本微信中打开，提示“state参数过长”，在安卓/IOS平台正常

state参数实际内容为https%3A%2F%2Fpattern.swarma.org%2Fmobile%2Factivity%2F22%3Ffrom%3Dwechat，长度73

开发者文档中要求state长度少于128字符，符合要求https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html