abort steps upon the |fetchController| state.

Author: yoshisatoyanagisawa

docs/index.bs

@@ -3263,10 +3263,9 @@ spec: storage; urlPrefix: https://storage.spec.whatwg.org/
                   1. Let |queue| be an empty [=queue=] of [=race result=].
                   1. Let |raceFetchController| be null.
                   1. Let |raceResponse| be a [=race response=] whose [=race response/value=] is "<code>pending</code>".
-                  1. Let |fetchControllerAborted| be false.
-                  1. Run the following substeps [=in parallel=], but [=abort when=] |fetchControllerAborted| is true:
+                  1. Run the following substeps [=in parallel=], but [=abort when=] |fetchController|'s [=fetch controller/state=] is "<code>terminated</code>" or "<code>aborted</code>":
                       1. Set |raceFetchController| to the result of calling [=fetch=] given |request|, with [=fetch/processResponse=] set to the following steps given a [=/response=] |raceNetworkRequestResponse|:
-                          1. If |fetchController|'s [=fetch controller/state=] is "<code>terminated</code>" or "<code>aborted</code>", then |fetchControllerAborted| is true.
+                          1. If |fetchController|'s [=fetch controller/state=] is "<code>terminated</code>" or "<code>aborted</code>", abort these steps.
                           1. If |raceNetworkRequestResponse|'s [=response/status=] is [=ok status=], then:
                               1. Set |raceResponse|'s [=race response/value=] to |raceNetworkRequestResponse|.
                               1. Let |raceNetworkResult| be a [=race result=] whose [=race result/routed response=] is |raceNetworkRequestResponse| and [=race result/used route=] is {{RouterSourceEnum/"network"}}.