diff --git a/src/htmx.js b/src/htmx.js
index fc53fd54..16372a67 100644
--- a/src/htmx.js
+++ b/src/htmx.js
@@ -954,8 +954,8 @@ return (function () {
             return eventName === "processedNode.htmx"
         }
 
-        function withExtensions(elt, toDo) {
-            forEach(getExtensions(elt), function(extension){
+        function withExtensions(elt, toDo, extensions) {
+            forEach(typeof extensions === 'undefined' ? getExtensions(elt) : extensions, function(extension){
                 try {
                     toDo(extension);
                 } catch (e) {
@@ -988,7 +988,7 @@ return (function () {
             var eventResult = elt.dispatchEvent(event);
             withExtensions(elt, function (extension) {
                 eventResult = eventResult && (extension.onEvent(eventName, event) !== false)
-            });
+            }, detail.extensions);
             return eventResult;
         }
 
@@ -1407,7 +1407,7 @@ return (function () {
                 }
             }
 
-            var eventDetail = {xhr: xhr, target: target};
+            var eventDetail = {xhr: xhr, target: target, extensions: getExtensions(elt)};
             xhr.onload = function () {
                 try {
                     if (!triggerEvent(elt, 'beforeOnLoad.htmx', eventDetail)) return;
diff --git a/test/ext/index.js b/test/ext/index.js
new file mode 100644
index 00000000..45842093
--- /dev/null
+++ b/test/ext/index.js
@@ -0,0 +1,50 @@
+describe("default extensions behavior", function() {
+
+    var loadCalls, afterSwapCalls, afterSettleCalls;
+
+    beforeEach(function () {
+        loadCalls = afterSwapCalls = afterSettleCalls = 0;
+        this.server = makeServer();
+        clearWorkArea();
+
+        htmx.defineExtension("ext-testswap", {
+            onEvent : function(name, evt) {
+                if (name === "load.htmx") {
+                    loadCalls++;
+                }
+                if (name === "afterSwap.htmx") {
+                    afterSwapCalls++;
+                }
+                if (name === "afterSettle.htmx") {
+                    afterSettleCalls++;
+                }
+            },
+            handleSwap: function (swapStyle, target, fragment, settleInfo) {
+                // simple outerHTML replacement for tests
+                var parentEl = target.parentElement;
+                parentEl.removeChild(target);
+                parentEl.appendChild(fragment)
+                return true;
+            }
+
+        });
+
+    });
+
+    afterEach(function () {
+        this.server.restore();
+        clearWorkArea();
+        htmx.removeExtension("ext-testswap");
+    });
+
+    it('handleSwap: afterSwap and afterSettle triggered if extension defined on parent', function () {
+        this.server.respondWith("GET", "/test", '<button>Clicked!</button>');
+        var div = make('<div hx-ext="ext-testswap"><button hx-get="/test" hx-swap="testswap">Click Me!</button></div>');
+        var btn = div.firstChild;
+        btn.click()
+        this.server.respond();
+        afterSwapCalls.should.equal(1);
+        afterSettleCalls.should.equal(1);
+        loadCalls.should.equal(0); // load.htmlx event on new added button is not triggered
+    });
+});
diff --git a/test/index.html b/test/index.html
index 13fc2bd0..2f99cdf0 100644
--- a/test/index.html
+++ b/test/index.html
@@ -83,6 +83,8 @@
 <script src="attributes/hx-ws.js"></script>
 
 <!-- extension tests -->
+<script src="ext/index.js"></script>
+
 <script src="../src/ext/method-override.js"></script>
 <script src="ext/method-override.js"></script>