If and only if you can guarantee that connection will eventually be restored at all, which you can't. Also there is a maximum amount of retries in practice, bec

If and only if you can guarantee that connection will eventually be restored at all, which you can't. Also there is a maximum amount of retries in practice, because either you put in a maximum retry count yourself or eventually your users will close the tab/shutdown their computer/etc. (Also in real life, if you keep retrying indefinitely when the networks unborks itself you will have a massive thundering herd of retrying clients waiting to hammer your system and some requests can easily be lost in the resulting frackas) More specifically, retrying can only establish exactly-once request processing semantics if you have infinite time to do so.