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net/http: Transport.CancelRequest no longer cancels in-flight request [1.14 backport] #41016

gopherbot opened this issue Aug 24, 2020 · 3 comments


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@gopherbot gopherbot commented Aug 24, 2020

@dmitshur requested issue #40453 to be considered for backport to the next 1.14 minor release.

@gopherbot Please backport to Go 1.14.

This is a second fixup to a previous fix (CL 242117) for an approved backport issue #39279. We can't submit that CL without this one (and #40973). This needs to be backported to Go 1.14 only, since the fix is already included in Go 1.1​5.

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@gopherbot gopherbot commented Aug 24, 2020

Change mentions this issue: [release-branch.go1.14] net/http: fix cancelation of requests with a readTrackingBody wrapper

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@cagedmantis cagedmantis commented Aug 27, 2020

Approved because this is a critical problem without a workaround.

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@gopherbot gopherbot commented Aug 27, 2020

Closed by merging 9017642 to release-branch.go1.14.

@gopherbot gopherbot closed this Aug 27, 2020
gopherbot pushed a commit that referenced this issue Aug 27, 2020
…readTrackingBody wrapper

Use the original *Request in the reqCanceler map, not the transient
wrapper created to handle body rewinding.

Change the key of reqCanceler to a struct{*Request}, to make it more
difficult to accidentally use the wrong request as the key.

Updates #40453.
Fixes #41016.

Change-Id: I4e61ee9ff2c794fb4c920a3a66c9a0458693d757
Run-TryBot: Damien Neil <>
TryBot-Result: Gobot Gobot <>
Reviewed-by: Russ Cox <>
Run-TryBot: Dmitri Shuralyov <>
Reviewed-by: Damien Neil <>
@dmitshur dmitshur modified the milestones: Go1.14.8, Go1.14.9 Sep 1, 2020
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