diff --git a/src/corelib/kernel/qeventdispatcher_wasm.cpp b/src/corelib/kernel/qeventdispatcher_wasm.cpp
index 23f218c4a00..23d558a61bb 100644
--- a/src/corelib/kernel/qeventdispatcher_wasm.cpp
+++ b/src/corelib/kernel/qeventdispatcher_wasm.cpp
@@ -41,9 +41,12 @@ static bool useAsyncify()
 }
 
 EM_JS(void, qt_asyncify_suspend_js, (), {
+    if (Module.qtSuspendId === undefined)
+        Module.qtSuspendId = 0;
     let sleepFn = (wakeUp) => {
         Module.qtAsyncifyWakeUp = wakeUp;
     };
+    ++Module.qtSuspendId;
     return Asyncify.handleSleep(sleepFn);
 });
 
@@ -52,10 +55,16 @@ EM_JS(void, qt_asyncify_resume_js, (), {
     if (wakeUp == undefined)
         return;
     Module.qtAsyncifyWakeUp = undefined;
+    const suspendId = Module.qtSuspendId;
 
     // Delayed wakeup with zero-timer. Workaround/fix for
     // https://github.com/emscripten-core/emscripten/issues/10515
-    setTimeout(wakeUp);
+    setTimeout(() => {
+        // Another suspend occurred while the timeout was in queue.
+        if (Module.qtSuspendId !== suspendId)
+            return;
+        wakeUp();
+    });
 });
 
 #else
@@ -200,7 +209,7 @@ bool QEventDispatcherWasm::processEvents(QEventLoop::ProcessEventsFlags flags)
 {
     emit awake();
 
-    bool hasPendingEvents = qGlobalPostedEventsCount() > 0;
+    bool hasPendingEvents = hasWindowSystemEvents();
 
     qCDebug(lcEventDispatcher) << "QEventDispatcherWasm::processEvents flags" << flags
                                << "pending events" << hasPendingEvents;
@@ -212,8 +221,6 @@ bool QEventDispatcherWasm::processEvents(QEventLoop::ProcessEventsFlags flags)
             handleApplicationExec();
     }
 
-    hasPendingEvents = qGlobalPostedEventsCount() > 0;
-
     if (!hasPendingEvents && (flags & QEventLoop::WaitForMoreEvents))
         wait();
 
@@ -227,7 +234,7 @@ bool QEventDispatcherWasm::processEvents(QEventLoop::ProcessEventsFlags flags)
         processTimers();
     }
 
-    hasPendingEvents = qGlobalPostedEventsCount() > 0;
+    hasPendingEvents = hasWindowSystemEvents();
     QCoreApplication::sendPostedEvents();
     processWindowSystemEvents(flags);
     return hasPendingEvents;
@@ -238,6 +245,10 @@ void QEventDispatcherWasm::processWindowSystemEvents(QEventLoop::ProcessEventsFl
     Q_UNUSED(flags);
 }
 
+bool QEventDispatcherWasm::hasWindowSystemEvents() {
+    return false;
+}
+
 void QEventDispatcherWasm::registerSocketNotifier(QSocketNotifier *notifier)
 {
     LOCK_GUARD(g_staticDataMutex);
diff --git a/src/corelib/kernel/qeventdispatcher_wasm_p.h b/src/corelib/kernel/qeventdispatcher_wasm_p.h
index b6de4187f4f..3c211b30528 100644
--- a/src/corelib/kernel/qeventdispatcher_wasm_p.h
+++ b/src/corelib/kernel/qeventdispatcher_wasm_p.h
@@ -52,7 +52,8 @@ public:
 
     static void socketSelect(int timeout, int socket, bool waitForRead, bool waitForWrite,
                             bool *selectForRead, bool *selectForWrite, bool *socketDisconnect);
-                        protected:
+protected:
+    virtual bool hasWindowSystemEvents();
     virtual void processWindowSystemEvents(QEventLoop::ProcessEventsFlags flags);
 
 private:
diff --git a/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp b/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
index 2fd1a304011..f48bcb6314b 100644
--- a/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
+++ b/src/plugins/platforms/wasm/qwasmeventdispatcher.cpp
@@ -14,4 +14,8 @@ void QWasmEventDispatcher::processWindowSystemEvents(QEventLoop::ProcessEventsFl
     QWindowSystemInterface::sendWindowSystemEvents(flags);
 }
 
+bool QWasmEventDispatcher::hasWindowSystemEvents() {
+    return QWindowSystemInterface::windowSystemEventsQueued();
+}
+
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/qwasmeventdispatcher.h b/src/plugins/platforms/wasm/qwasmeventdispatcher.h
index a28fa7263bc..5b9b08cba3d 100644
--- a/src/plugins/platforms/wasm/qwasmeventdispatcher.h
+++ b/src/plugins/platforms/wasm/qwasmeventdispatcher.h
@@ -12,6 +12,7 @@ class QWasmEventDispatcher : public QEventDispatcherWasm
 {
 protected:
     void processWindowSystemEvents(QEventLoop::ProcessEventsFlags flags) override;
+    bool hasWindowSystemEvents() override;
 };
 
 QT_END_NAMESPACE