We now keep track of pending authorization requests during verify() and defer the asynchronous revocation of the ones that failed. This should help avoid letsencrypt's "too many currently pending authorizations" error. Fixes golang/go#23426 Change-Id: Ibffb10f59733962d45e43b67fc42a2ec7c5faf51 Reviewed-on: https://go-review.googlesource.com/100078 Run-TryBot: Filippo Valsorda <filippo@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Leo Antunes <costela@gmail.com> Reviewed-by: Filippo Valsorda <filippo@golang.org>