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x-ref: [Flakiness Metrics](https://app.datadoghq.com/ci/test-runs?query=test_level%3Atest%20env%3Aci%20%40git.repository.id%3Agithub.com%2Fvercel%2Fnext.js%20%40test.service%3Anextjs%20%40test.status%3Afail%20%40test.name%3A%22streaming%20responses%20cancel%20inner%20stream%20after%20disconnect%20edge%20pages%20api%20cancels%20stream%20making%20progress%22&agg_m=count&agg_m_source=base&agg_t=count¤tTab=overview&eventStack=&fromUser=false&index=citest&start=1728463943572&end=1729068743572&paused=false) In #71163, we added to the `Streamable` handling the case where the request might already be aborted before the response was sent or had a chance to be consumed. For the "cancels stream making progress" however, the request may not be aborted, and instead only the response is destroyed, leading to the `cancel` method of the `Streamable` being called, but not the `abort` method. To handle all cases, we're now resolving the `finished` promise of the `Streamable` when either `abort` or `cancel` are called.