没有消息回执 #84
Labels
good first issue
Good for newcomers
help wanted
Extra attention is needed
question
Further information is requested
Bug 描述
客户端或服务端发消息,对方收到消息后,没有发送回执,无法判断消息是否发送成功.
这是一个很大的漏洞,如果要做离线消息的话,消息是否发送成功是一个非常重要的点
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