Weixin released an update 6.3.25 on 2016-09-05, which blocks almost all URL schemes request from non-weixin's application. Only requests from weixin's applications and some "white-listed" applications are allowed.
微信在 2016 年 9 月 5 日的 6.3.25 更新中,已经屏蔽了绝大部分外部发起的 URL Scheme 请求,只允许在微信内部或少量白名单应用中进行调用。鉴此,以下所展示的内容目前可能已经失效,本文仅供存档参考。
Translated from a mainland china's developer blog:
Source: https://spacekid.me/weixin-url-schemes/