diff --git a/packages/rum-core/src/domain/view/viewMetrics/trackScrollMetrics.ts b/packages/rum-core/src/domain/view/viewMetrics/trackScrollMetrics.ts
index ea2c47fc21..11b70fde20 100644
--- a/packages/rum-core/src/domain/view/viewMetrics/trackScrollMetrics.ts
+++ b/packages/rum-core/src/domain/view/viewMetrics/trackScrollMetrics.ts
@@ -102,7 +102,7 @@ export function createScrollValuesObservable(
 
       const observerTarget = document.scrollingElement || document.documentElement
       const resizeObserver = new ResizeObserver(monitor(throttledNotify.throttled))
-      if (observerTarget instanceof Element) {
+      if (observerTarget) {
         resizeObserver.observe(observerTarget)
       }
       const eventListener = addEventListener(configuration, window, DOM_EVENT.SCROLL, throttledNotify.throttled, {
diff --git a/test/e2e/lib/framework/createTest.ts b/test/e2e/lib/framework/createTest.ts
index fca574fb7c..91ec8eb2ea 100644
--- a/test/e2e/lib/framework/createTest.ts
+++ b/test/e2e/lib/framework/createTest.ts
@@ -1,4 +1,3 @@
-import * as fs from 'fs'
 import type { LogsInitConfiguration } from '@datadog/browser-logs'
 import type { RumInitConfiguration } from '@datadog/browser-rum-core'
 import { DefaultPrivacyLevel } from '@datadog/browser-rum'
@@ -15,7 +14,6 @@ import type { SetupFactory, SetupOptions } from './pageSetups'
 import { DEFAULT_SETUPS, npmSetup } from './pageSetups'
 import { createIntakeServerApp } from './serverApps/intake'
 import { createMockServerApp } from './serverApps/mock'
-import { RUM_BUNDLE } from './sdkBuilds'
 
 const DEFAULT_RUM_CONFIGURATION = {
   applicationId: APPLICATION_ID,
@@ -230,33 +228,3 @@ async function tearDownTest({ intakeRegistry }: TestContext) {
   })
   await deleteAllCookies()
 }
-
-export async function injectRumWithPuppeteer() {
-  const ddRUM = fs.readFileSync(RUM_BUNDLE, 'utf8')
-  const puppeteerBrowser = await browser.getPuppeteer()
-  let injected = true
-
-  await browser.call(async () => {
-    const page = await puppeteerBrowser.newPage()
-    await page.evaluateOnNewDocument(
-      `
-        if (location.href !== 'about:blank') {
-          ${ddRUM}
-          window.DD_RUM._setDebug(true)
-          window.DD_RUM.init({
-            applicationId: ${APPLICATION_ID},
-            clientToken: ${CLIENT_TOKEN},
-          })
-          window.DD_RUM.startView()
-        }
-      `
-    )
-    page.on('console', (msg) => {
-      if (msg.type() === 'error') {
-        injected = false
-      }
-    })
-    await page.goto('https://webdriver.io')
-  })
-  return injected
-}
diff --git a/test/e2e/lib/framework/index.ts b/test/e2e/lib/framework/index.ts
index 6b539d11e6..27ce98ee34 100644
--- a/test/e2e/lib/framework/index.ts
+++ b/test/e2e/lib/framework/index.ts
@@ -1,4 +1,4 @@
-export { createTest, injectRumWithPuppeteer } from './createTest'
+export { createTest } from './createTest'
 export { bundleSetup, html } from './pageSetups'
 export { IntakeRegistry } from './intakeRegistry'
 export { getTestServers, waitForServersIdle } from './httpServers'
diff --git a/test/e2e/scenario/rum/s8sInject.scenario.ts b/test/e2e/scenario/rum/s8sInject.scenario.ts
index 72a3208cdf..fa93b30b26 100644
--- a/test/e2e/scenario/rum/s8sInject.scenario.ts
+++ b/test/e2e/scenario/rum/s8sInject.scenario.ts
@@ -1,4 +1,7 @@
-import { injectRumWithPuppeteer } from '../../lib/framework'
+import { RUM_BUNDLE } from '../../lib/framework/sdkBuilds'
+import { APPLICATION_ID, CLIENT_TOKEN } from '../../lib/helpers/configuration'
+import * as fs from 'fs'
+
 describe('Inject RUM with Puppeteer', () => {
   // S8s tests inject RUM with puppeteer evaluateOnNewDocument
   it('should not throw error in chrome', async () => {
@@ -6,3 +9,33 @@ describe('Inject RUM with Puppeteer', () => {
     expect(isInjected).toBe(true)
   })
 })
+
+async function injectRumWithPuppeteer() {
+  const ddRUM = fs.readFileSync(RUM_BUNDLE, 'utf8')
+  const puppeteerBrowser = await browser.getPuppeteer()
+  let injected = true
+
+  await browser.call(async () => {
+    const page = await puppeteerBrowser.newPage()
+    await page.evaluateOnNewDocument(
+      `
+        if (location.href !== 'about:blank') {
+          ${ddRUM}
+          window.DD_RUM._setDebug(true)
+          window.DD_RUM.init({
+            applicationId: ${APPLICATION_ID},
+            clientToken: ${CLIENT_TOKEN},
+          })
+          window.DD_RUM.startView()
+        }
+      `
+    )
+    page.on('console', (msg) => {
+      if (msg.type() === 'error') {
+        injected = false
+      }
+    })
+    await page.goto('https://webdriver.io')
+  })
+  return injected
+}