diff --git a/packages/vitest/src/integrations/env/happy-dom.ts b/packages/vitest/src/integrations/env/happy-dom.ts
index 3df3b2bd3b5b..9c4fecc40b20 100644
--- a/packages/vitest/src/integrations/env/happy-dom.ts
+++ b/packages/vitest/src/integrations/env/happy-dom.ts
@@ -5,9 +5,12 @@ import { populateGlobal } from './utils'
 export default <Environment>({
   name: 'happy-dom',
   transformMode: 'web',
-  async setupVM() {
+  async setupVM({ 'happy-dom': happyDom = {} }) {
     const { Window } = await importModule('happy-dom') as typeof import('happy-dom')
-    const win = new Window() as any
+    const win = new Window({
+      ...happyDom,
+      url: happyDom.url || 'http://localhost:3000',
+    }) as any
 
     // TODO: browser doesn't expose Buffer, but a lot of dependencies use it
     win.Buffer = Buffer
@@ -26,11 +29,14 @@ export default <Environment>({
       },
     }
   },
-  async setup(global) {
+  async setup(global, { 'happy-dom': happyDom = {} }) {
     // happy-dom v3 introduced a breaking change to Window, but
     // provides GlobalWindow as a way to use previous behaviour
     const { Window, GlobalWindow } = await importModule('happy-dom') as typeof import('happy-dom')
-    const win = new (GlobalWindow || Window)()
+    const win = new (GlobalWindow || Window)({
+      ...happyDom,
+      url: happyDom.url || 'http://localhost:3000',
+    })
 
     const { keys, originals } = populateGlobal(global, win, { bindFunctions: true })
 
diff --git a/test/core/test/happy-dom.test.ts b/test/core/test/happy-dom.test.ts
index d234ec8ae016..06641fceb403 100644
--- a/test/core/test/happy-dom.test.ts
+++ b/test/core/test/happy-dom.test.ts
@@ -2,6 +2,7 @@
 
 /**
  * @vitest-environment happy-dom
+ * @vitest-environment-options { "settings": { "disableCSSFileLoading": true }, "width": 1920 }
  */
 
 /* eslint-disable vars-on-top */
@@ -11,8 +12,19 @@ import { expect, it, vi } from 'vitest'
 declare global {
   // eslint-disable-next-line no-var
   var __property_dom: unknown
+  // eslint-disable-next-line no-var
+  var happyDOM: unknown
 }
 
+it('defaults URL to localhost:3000', () => {
+  expect(location.href).toBe('http://localhost:3000/')
+})
+
+it('accepts custom environment options', () => {
+  // default is false
+  expect((window.happyDOM as any).settings.disableCSSFileLoading).toBe(true)
+})
+
 it('defined on self/window are defined on global', () => {
   expect(self).toBeDefined()
   expect(window).toBeDefined()