fix: correct firing order of abort events (#3169)

Author: tsctx

lib/web/fetch/request.js

@@ -38,6 +38,8 @@ const requestFinalizer = new FinalizationRegistry(({ signal, abort }) => {
   signal.removeEventListener('abort', abort)
 })
 
+const dependentControllerMap = new WeakMap()
+
 function buildAbort (acRef) {
   return abort
 
@@ -57,6 +59,21 @@ function buildAbort (acRef) {
       this.removeEventListener('abort', abort)
 
       ac.abort(this.reason)
+
+      const controllerList = dependentControllerMap.get(ac.signal)
+
+      if (controllerList !== undefined) {
+        if (controllerList.size !== 0) {
+          for (const ref of controllerList) {
+            const ctrl = ref.deref()
+            if (ctrl !== undefined) {
+              ctrl.abort(this.reason)
+            }
+          }
+          controllerList.clear()
+        }
+        dependentControllerMap.delete(ac.signal)
+      }
     }
   }
 }
@@ -754,11 +771,16 @@ class Request {
     if (this.signal.aborted) {
       ac.abort(this.signal.reason)
     } else {
+      let list = dependentControllerMap.get(this.signal)
+      if (list === undefined) {
+        list = new Set()
+        dependentControllerMap.set(this.signal, list)
+      }
+      const acRef = new WeakRef(ac)
+      list.add(acRef)
       util.addAbortListener(
-        this.signal,
-        () => {
-          ac.abort(this.signal.reason)
-        }
+        ac.signal,
+        buildAbort(acRef)
       )
     }
 

test/wpt/status/fetch.status.json

@@ -2,13 +2,11 @@
   "api": {
     "abort": {
       "general.any.js": {
-        "note": "TODO(@KhafraDev): Clone aborts with original controller can probably be fixed",
         "fail": [
           "Already aborted signal rejects immediately",
           "Underlying connection is closed when aborting after receiving response - no-cors",
           "Stream errors once aborted. Underlying connection closed.",
-          "Readable stream synchronously cancels with AbortError if aborted before reading",
-          "Clone aborts with original controller"
+          "Readable stream synchronously cancels with AbortError if aborted before reading"
         ]
       },
       "cache.https.any.js": {