diff --git a/vertx-vaadin-tests/test-root-context/src/main/java/com/vaadin/flow/uitest/ui/BrowserWindowResizeView.java b/vertx-vaadin-tests/test-root-context/src/main/java/com/vaadin/flow/uitest/ui/BrowserWindowResizeView.java
index 650b7019..42267fe0 100644
--- a/vertx-vaadin-tests/test-root-context/src/main/java/com/vaadin/flow/uitest/ui/BrowserWindowResizeView.java
+++ b/vertx-vaadin-tests/test-root-context/src/main/java/com/vaadin/flow/uitest/ui/BrowserWindowResizeView.java
@@ -23,6 +23,7 @@
 package com.vaadin.flow.uitest.ui;
 
 import com.vaadin.flow.component.html.Div;
+import com.vaadin.flow.component.html.NativeButton;
 import com.vaadin.flow.router.Route;
 import com.vaadin.flow.uitest.vertx.ViewTestLayout;
 
@@ -35,8 +36,17 @@ protected void onShow() {
 
         windowSize.setId("size-info");
 
-        getPage().addBrowserWindowResizeListener(event -> windowSize.setText(String.valueOf(event.getWidth())));
+        getPage().addBrowserWindowResizeListener(event -> windowSize.setText(
+                "%sx%s".formatted(event.getWidth(), event.getHeight())));
 
         add(windowSize);
+
+        var modalBtn = new NativeButton("Open modal (should keep working");
+        modalBtn.setId("modal");
+        modalBtn.addClickListener(e -> {
+            add(new Div("Now modal, but resize events should still flow in"));
+            getUI().get().addModal(new Div());
+        });
+        add(modalBtn);
     }
 }
diff --git a/vertx-vaadin-tests/test-root-context/src/test/java/com/vaadin/flow/uitest/ui/BrowserWindowResizeIT.java b/vertx-vaadin-tests/test-root-context/src/test/java/com/vaadin/flow/uitest/ui/BrowserWindowResizeIT.java
index 38bc8732..3936d3d2 100644
--- a/vertx-vaadin-tests/test-root-context/src/test/java/com/vaadin/flow/uitest/ui/BrowserWindowResizeIT.java
+++ b/vertx-vaadin-tests/test-root-context/src/test/java/com/vaadin/flow/uitest/ui/BrowserWindowResizeIT.java
@@ -32,20 +32,53 @@
 public class BrowserWindowResizeIT extends ChromeBrowserTest {
 
     @Test
-    public void listenResizeEvent() {
+    public void listenResizeEvent() throws InterruptedException {
         open();
+
         Dimension currentSize = getDriver().manage().window().getSize();
 
         int newWidth = currentSize.getWidth() - 10;
-        getDriver().manage().window().setSize(new Dimension(newWidth, currentSize.getHeight()));
+        int newHeight = currentSize.getHeight() - 10;
+        getDriver().manage().window()
+                .setSize(new Dimension(newWidth, newHeight));
+
+        // debounced by default with 300
+        Thread.sleep(500);
 
         WebElement info = findElement(By.id("size-info"));
 
-        Assert.assertEquals(String.valueOf(newWidth), info.getText());
+        Assert.assertEquals(String.valueOf(newWidth),
+                info.getText().split("x")[0]);
+        // Selenium sets the window size, the tested API reports viewport
+        // size...
+        int actualHeight = Integer.parseInt(info.getText().split("x")[1]);
 
         newWidth -= 30;
-        getDriver().manage().window().setSize(new Dimension(newWidth, currentSize.getHeight()));
+        newHeight -= 20;
+        actualHeight -= 20;
+        getDriver().manage().window()
+                .setSize(new Dimension(newWidth, newHeight));
+
+        Thread.sleep(500);
+
+        Assert.assertEquals(String.valueOf(newWidth),
+                info.getText().split("x")[0]);
+        Assert.assertEquals(String.valueOf(actualHeight),
+                info.getText().split("x")[1]);
+
+        // check the same comes in still if modal component set
+        findElement(By.id("modal")).click();
+        newWidth += 30;
+        newHeight += 20;
+        actualHeight += 20;
+        getDriver().manage().window()
+                .setSize(new Dimension(newWidth, newHeight));
+
+        Thread.sleep(500);
 
-        Assert.assertEquals(String.valueOf(newWidth), info.getText());
+        Assert.assertEquals(String.valueOf(newWidth),
+                info.getText().split("x")[0]);
+        Assert.assertEquals(String.valueOf(actualHeight),
+                info.getText().split("x")[1]);
     }
 }