diff --git a/.gitignore b/.gitignore
index f7febe1dde..ed0ce8abca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,4 +17,5 @@ drivers/
 nohup.out
 .trace
 .tmp
-allure*
\ No newline at end of file
+allure*
+playwright-report
diff --git a/src/dispatchers/browserContextDispatcher.ts b/src/dispatchers/browserContextDispatcher.ts
index 6a937d8b8f..093159a9a5 100644
--- a/src/dispatchers/browserContextDispatcher.ts
+++ b/src/dispatchers/browserContextDispatcher.ts
@@ -104,7 +104,7 @@ export class BrowserContextDispatcher extends Dispatcher<BrowserContext, channel
       const binding = new BindingCallDispatcher(this._scope, params.name, !!params.needsHandle, source, args);
       this._dispatchEvent('bindingCall', { binding });
       return binding.promise();
-    }, 'main');
+    });
   }
 
   async fetch(params: channels.BrowserContextFetchParams): Promise<channels.BrowserContextFetchResult> {
diff --git a/src/server/browserContext.ts b/src/server/browserContext.ts
index 989beb33e8..3612351ea7 100644
--- a/src/server/browserContext.ts
+++ b/src/server/browserContext.ts
@@ -110,7 +110,7 @@ export abstract class BrowserContext extends SdkObject {
     });
 
     if (debugMode() === 'console')
-      await this.extendInjectedScript('main', consoleApiSource.source);
+      await this.extendInjectedScript(consoleApiSource.source);
   }
 
   async _ensureVideosPath() {
@@ -168,16 +168,15 @@ export abstract class BrowserContext extends SdkObject {
     return this._doSetHTTPCredentials(httpCredentials);
   }
 
-  async exposeBinding(name: string, needsHandle: boolean, playwrightBinding: frames.FunctionWithSource, world: types.World): Promise<void> {
-    const identifier = PageBinding.identifier(name, world);
-    if (this._pageBindings.has(identifier))
+  async exposeBinding(name: string, needsHandle: boolean, playwrightBinding: frames.FunctionWithSource): Promise<void> {
+    if (this._pageBindings.has(name))
       throw new Error(`Function "${name}" has been already registered`);
     for (const page of this.pages()) {
-      if (page.getBinding(name, world))
+      if (page.getBinding(name))
         throw new Error(`Function "${name}" has been already registered in one of the pages`);
     }
-    const binding = new PageBinding(name, playwrightBinding, needsHandle, world);
-    this._pageBindings.set(identifier, binding);
+    const binding = new PageBinding(name, playwrightBinding, needsHandle);
+    this._pageBindings.set(name, binding);
     await this._doExposeBinding(binding);
   }
 
@@ -373,8 +372,8 @@ export abstract class BrowserContext extends SdkObject {
     }
   }
 
-  async extendInjectedScript(world: types.World, source: string, arg?: any) {
-    const installInFrame = (frame: frames.Frame) => frame.extendInjectedScript(world, source, arg).catch(() => {});
+  async extendInjectedScript(source: string, arg?: any) {
+    const installInFrame = (frame: frames.Frame) => frame.extendInjectedScript(source, arg).catch(() => {});
     const installInPage = (page: Page) => {
       page.on(Page.Events.InternalFrameNavigatedToNewDocument, installInFrame);
       return Promise.all(page.frames().map(installInFrame));
diff --git a/src/server/chromium/crPage.ts b/src/server/chromium/crPage.ts
index 1483679cca..d22dd30e90 100644
--- a/src/server/chromium/crPage.ts
+++ b/src/server/chromium/crPage.ts
@@ -172,7 +172,7 @@ export class CRPage implements PageDelegate {
 
   async exposeBinding(binding: PageBinding) {
     await this._forAllFrameSessions(frame => frame._initBinding(binding));
-    await Promise.all(this._page.frames().map(frame => frame.evaluateExpression(binding.source, false, {}, binding.world).catch(e => {})));
+    await Promise.all(this._page.frames().map(frame => frame.evaluateExpression(binding.source, false, {}).catch(e => {})));
   }
 
   async updateExtraHTTPHeaders(): Promise<void> {
@@ -474,7 +474,7 @@ class FrameSession {
             worldName: UTILITY_WORLD_NAME,
           });
           for (const binding of this._crPage._browserContext._pageBindings.values())
-            frame.evaluateExpression(binding.source, false, undefined, binding.world).catch(e => {});
+            frame.evaluateExpression(binding.source, false, undefined).catch(e => {});
           for (const source of this._crPage._browserContext._evaluateOnNewDocumentSources)
             frame.evaluateExpression(source, false, undefined, 'main').catch(e => {});
         }
@@ -758,10 +758,9 @@ class FrameSession {
   }
 
   async _initBinding(binding: PageBinding) {
-    const worldName = binding.world === 'utility' ? UTILITY_WORLD_NAME : undefined;
     await Promise.all([
-      this._client.send('Runtime.addBinding', { name: binding.name, executionContextName: worldName }),
-      this._client.send('Page.addScriptToEvaluateOnNewDocument', { source: binding.source, worldName })
+      this._client.send('Runtime.addBinding', { name: binding.name }),
+      this._client.send('Page.addScriptToEvaluateOnNewDocument', { source: binding.source })
     ]);
   }
 
diff --git a/src/server/firefox/ffBrowser.ts b/src/server/firefox/ffBrowser.ts
index 8fe16baa73..81c07a6b81 100644
--- a/src/server/firefox/ffBrowser.ts
+++ b/src/server/firefox/ffBrowser.ts
@@ -24,7 +24,7 @@ import { Page, PageBinding, PageDelegate } from '../page';
 import { ConnectionTransport } from '../transport';
 import * as types from '../types';
 import { ConnectionEvents, FFConnection } from './ffConnection';
-import { FFPage, UTILITY_WORLD_NAME } from './ffPage';
+import { FFPage } from './ffPage';
 import { Protocol } from './protocol';
 
 export class FFBrowser extends Browser {
@@ -326,8 +326,7 @@ export class FFBrowserContext extends BrowserContext {
   }
 
   async _doExposeBinding(binding: PageBinding) {
-    const worldName = binding.world === 'utility' ? UTILITY_WORLD_NAME : '';
-    await this._browser._connection.send('Browser.addBinding', { browserContextId: this._browserContextId, worldName, name: binding.name, script: binding.source });
+    await this._browser._connection.send('Browser.addBinding', { browserContextId: this._browserContextId, name: binding.name, script: binding.source });
   }
 
   async _doUpdateRequestInterception(): Promise<void> {
diff --git a/src/server/firefox/ffPage.ts b/src/server/firefox/ffPage.ts
index 5a10a84c3e..2d93e0f91d 100644
--- a/src/server/firefox/ffPage.ts
+++ b/src/server/firefox/ffPage.ts
@@ -317,8 +317,7 @@ export class FFPage implements PageDelegate {
   }
 
   async exposeBinding(binding: PageBinding) {
-    const worldName = binding.world === 'utility' ? UTILITY_WORLD_NAME : '';
-    await this._session.send('Page.addBinding', { name: binding.name, script: binding.source, worldName });
+    await this._session.send('Page.addBinding', { name: binding.name, script: binding.source });
   }
 
   didClose() {
diff --git a/src/server/frames.ts b/src/server/frames.ts
index 510aa71965..43406123c8 100644
--- a/src/server/frames.ts
+++ b/src/server/frames.ts
@@ -1299,8 +1299,8 @@ export class Frame extends SdkObject {
     this._networkIdleTimer = undefined;
   }
 
-  async extendInjectedScript(world: types.World, source: string, arg?: any): Promise<js.JSHandle> {
-    const context = await this._context(world);
+  async extendInjectedScript(source: string, arg?: any): Promise<js.JSHandle> {
+    const context = await this._context('main');
     const injectedScriptHandle = await context.injectedScript();
     return injectedScriptHandle.evaluateHandle((injectedScript, {source, arg}) => {
       return injectedScript.extend(source, arg);
diff --git a/src/server/page.ts b/src/server/page.ts
index 77dd2ba92e..a261c8b11c 100644
--- a/src/server/page.ts
+++ b/src/server/page.ts
@@ -268,14 +268,13 @@ export class Page extends SdkObject {
     this._timeoutSettings.setDefaultTimeout(timeout);
   }
 
-  async exposeBinding(name: string, needsHandle: boolean, playwrightBinding: frames.FunctionWithSource, world: types.World = 'main') {
-    const identifier = PageBinding.identifier(name, world);
-    if (this._pageBindings.has(identifier))
+  async exposeBinding(name: string, needsHandle: boolean, playwrightBinding: frames.FunctionWithSource) {
+    if (this._pageBindings.has(name))
       throw new Error(`Function "${name}" has been already registered`);
-    if (this._browserContext._pageBindings.has(identifier))
+    if (this._browserContext._pageBindings.has(name))
       throw new Error(`Function "${name}" has been already registered in the browser context`);
-    const binding = new PageBinding(name, playwrightBinding, needsHandle, world);
-    this._pageBindings.set(identifier, binding);
+    const binding = new PageBinding(name, playwrightBinding, needsHandle);
+    this._pageBindings.set(name, binding);
     await this._delegate.exposeBinding(binding);
   }
 
@@ -490,9 +489,8 @@ export class Page extends SdkObject {
     return [...this._browserContext._pageBindings.values(), ...this._pageBindings.values()];
   }
 
-  getBinding(name: string, world: types.World) {
-    const identifier = PageBinding.identifier(name, world);
-    return this._pageBindings.get(identifier) || this._browserContext._pageBindings.get(identifier);
+  getBinding(name: string) {
+    return this._pageBindings.get(name) || this._browserContext._pageBindings.get(name);
   }
 
   setScreencastOptions(options: { width: number, height: number, quality: number } | null) {
@@ -549,25 +547,19 @@ export class PageBinding {
   readonly playwrightFunction: frames.FunctionWithSource;
   readonly source: string;
   readonly needsHandle: boolean;
-  readonly world: types.World;
 
-  constructor(name: string, playwrightFunction: frames.FunctionWithSource, needsHandle: boolean, world: types.World) {
+  constructor(name: string, playwrightFunction: frames.FunctionWithSource, needsHandle: boolean) {
     this.name = name;
     this.playwrightFunction = playwrightFunction;
     this.source = `(${addPageBinding.toString()})(${JSON.stringify(name)}, ${needsHandle})`;
     this.needsHandle = needsHandle;
-    this.world = world;
-  }
-
-  static identifier(name: string, world: types.World) {
-    return world + ':' + name;
   }
 
   static async dispatch(page: Page, payload: string, context: dom.FrameExecutionContext) {
     const {name, seq, args} = JSON.parse(payload);
     try {
       assert(context.world);
-      const binding = page.getBinding(name, context.world)!;
+      const binding = page.getBinding(name)!;
       let result: any;
       if (binding.needsHandle) {
         const handle = await context.evaluateHandle(takeHandle, { name, seq }).catch(e => null);
diff --git a/src/server/supplements/injected/recorder.ts b/src/server/supplements/injected/recorder.ts
index e612664973..66ee13c9ae 100644
--- a/src/server/supplements/injected/recorder.ts
+++ b/src/server/supplements/injected/recorder.ts
@@ -29,8 +29,6 @@ declare module globalThis {
   let _playwrightRefreshOverlay: () => void;
 }
 
-const scriptSymbol = Symbol('scriptSymbol');
-
 export class Recorder {
   private _injectedScript: InjectedScript;
   private _performingAction = false;
@@ -132,9 +130,8 @@ export class Recorder {
   }
 
   private _refreshListenersIfNeeded() {
-    if ((document.documentElement as any)[scriptSymbol])
+    if (this._outerGlassPaneElement.parentElement)
       return;
-    (document.documentElement as any)[scriptSymbol] = true;
     removeEventListeners(this._listeners);
     this._listeners = [
       addEventListener(document, 'click', event => this._onClick(event as MouseEvent), true),
diff --git a/src/server/supplements/recorderSupplement.ts b/src/server/supplements/recorderSupplement.ts
index 045aab9794..9a233ddd44 100644
--- a/src/server/supplements/recorderSupplement.ts
+++ b/src/server/supplements/recorderSupplement.ts
@@ -184,11 +184,11 @@ export class RecorderSupplement implements InstrumentationListener {
     // Input actions that potentially lead to navigation are intercepted on the page and are
     // performed by the Playwright.
     await this._context.exposeBinding('_playwrightRecorderPerformAction', false,
-        (source: BindingSource, action: actions.Action) => this._performAction(source.frame, action), 'utility');
+        (source: BindingSource, action: actions.Action) => this._performAction(source.frame, action));
 
     // Other non-essential actions are simply being recorded.
     await this._context.exposeBinding('_playwrightRecorderRecordAction', false,
-        (source: BindingSource, action: actions.Action) => this._recordAction(source.frame, action), 'utility');
+        (source: BindingSource, action: actions.Action) => this._recordAction(source.frame, action));
 
     await this._context.exposeBinding('_playwrightRecorderState', false, source => {
       let actionSelector = this._highlightedSelector;
@@ -205,20 +205,20 @@ export class RecorderSupplement implements InstrumentationListener {
         actionSelector,
       };
       return uiState;
-    }, 'utility');
+    });
 
     await this._context.exposeBinding('_playwrightRecorderSetSelector', false, async (_, selector: string) => {
       this._setMode('none');
       await this._recorderApp?.setSelector(selector, true);
       await this._recorderApp?.bringToFront();
-    }, 'utility');
+    });
 
     await this._context.exposeBinding('_playwrightResume', false, () => {
       this._debugger.resume(false);
-    }, 'main');
+    });
 
-    await this._context.extendInjectedScript('utility', recorderSource.source, { isUnderTest: isUnderTest() });
-    await this._context.extendInjectedScript('main', consoleApiSource.source);
+    await this._context.extendInjectedScript(recorderSource.source, { isUnderTest: isUnderTest() });
+    await this._context.extendInjectedScript(consoleApiSource.source);
 
     if (this._debugger.isPaused())
       this._pausedStateChanged();
diff --git a/src/server/trace/viewer/traceViewer.ts b/src/server/trace/viewer/traceViewer.ts
index 18e618187e..11fba5d72c 100644
--- a/src/server/trace/viewer/traceViewer.ts
+++ b/src/server/trace/viewer/traceViewer.ts
@@ -169,7 +169,7 @@ Please run 'npx playwright install' to install Playwright browsers
     await controller.run(async progress => {
       await context._browser._defaultContext!._loadDefaultContextAsIs(progress);
     });
-    await context.extendInjectedScript('main', consoleApiSource.source);
+    await context.extendInjectedScript(consoleApiSource.source);
     const [page] = context.pages();
 
     if (traceViewerBrowser === 'chromium')
diff --git a/src/server/webkit/wkBrowser.ts b/src/server/webkit/wkBrowser.ts
index 7fd3b10925..4c49c00ab2 100644
--- a/src/server/webkit/wkBrowser.ts
+++ b/src/server/webkit/wkBrowser.ts
@@ -308,7 +308,7 @@ export class WKBrowserContext extends BrowserContext {
   async _doAddInitScript(source: string) {
     this._evaluateOnNewDocumentSources.push(source);
     for (const page of this.pages())
-      await (page._delegate as WKPage)._updateBootstrapScript('main');
+      await (page._delegate as WKPage)._updateBootstrapScript();
   }
 
   async _doExposeBinding(binding: PageBinding) {
diff --git a/src/server/webkit/wkPage.ts b/src/server/webkit/wkPage.ts
index cf3599db4a..a0457338be 100644
--- a/src/server/webkit/wkPage.ts
+++ b/src/server/webkit/wkPage.ts
@@ -185,12 +185,10 @@ export class WKPage implements PageDelegate {
       promises.push(session.send('Page.overrideUserAgent', { value: contextOptions.userAgent }));
     if (this._page._state.mediaType || this._page._state.colorScheme || this._page._state.reducedMotion)
       promises.push(WKPage._setEmulateMedia(session, this._page._state.mediaType, this._page._state.colorScheme, this._page._state.reducedMotion));
-    for (const world of ['main', 'utility'] as const) {
-      const bootstrapScript = this._calculateBootstrapScript(world);
-      if (bootstrapScript.length)
-        promises.push(session.send('Page.setBootstrapScript', { source: bootstrapScript, worldName: webkitWorldName(world) }));
-      this._page.frames().map(frame => frame.evaluateExpression(bootstrapScript, false, undefined, world).catch(e => {}));
-    }
+    const bootstrapScript = this._calculateBootstrapScript();
+    if (bootstrapScript.length)
+      promises.push(session.send('Page.setBootstrapScript', { source: bootstrapScript }));
+    this._page.frames().map(frame => frame.evaluateExpression(bootstrapScript, false, undefined).catch(e => {}));
     if (contextOptions.bypassCSP)
       promises.push(session.send('Page.setBypassCSP', { enabled: true }));
     if (this._page._state.emulatedSize) {
@@ -720,38 +718,34 @@ export class WKPage implements PageDelegate {
   }
 
   async exposeBinding(binding: PageBinding): Promise<void> {
-    await this._updateBootstrapScript(binding.world);
+    await this._updateBootstrapScript();
     await this._evaluateBindingScript(binding);
   }
 
   private async _evaluateBindingScript(binding: PageBinding): Promise<void> {
     const script = this._bindingToScript(binding);
-    await Promise.all(this._page.frames().map(frame => frame.evaluateExpression(script, false, {}, binding.world).catch(e => {})));
+    await Promise.all(this._page.frames().map(frame => frame.evaluateExpression(script, false, {}).catch(e => {})));
   }
 
   async evaluateOnNewDocument(script: string): Promise<void> {
-    await this._updateBootstrapScript('main');
+    await this._updateBootstrapScript();
   }
 
   private _bindingToScript(binding: PageBinding): string {
     return `self.${binding.name} = (param) => console.debug('${BINDING_CALL_MESSAGE}', {}, param); ${binding.source}`;
   }
 
-  private _calculateBootstrapScript(world: types.World): string {
+  private _calculateBootstrapScript(): string {
     const scripts: string[] = [];
-    for (const binding of this._page.allBindings()) {
-      if (binding.world === world)
-        scripts.push(this._bindingToScript(binding));
-    }
-    if (world === 'main') {
-      scripts.push(...this._browserContext._evaluateOnNewDocumentSources);
-      scripts.push(...this._page._evaluateOnNewDocumentSources);
-    }
+    for (const binding of this._page.allBindings())
+      scripts.push(this._bindingToScript(binding));
+    scripts.push(...this._browserContext._evaluateOnNewDocumentSources);
+    scripts.push(...this._page._evaluateOnNewDocumentSources);
     return scripts.join(';');
   }
 
-  async _updateBootstrapScript(world: types.World): Promise<void> {
-    await this._updateState('Page.setBootstrapScript', { source: this._calculateBootstrapScript(world), worldName: webkitWorldName(world) });
+  async _updateBootstrapScript(): Promise<void> {
+    await this._updateState('Page.setBootstrapScript', { source: this._calculateBootstrapScript() });
   }
 
   async closePage(runBeforeUnload: boolean): Promise<void> {
@@ -1100,13 +1094,6 @@ export class WKPage implements PageDelegate {
   }
 }
 
-function webkitWorldName(world: types.World) {
-  switch (world) {
-    case 'main': return undefined;
-    case 'utility': return UTILITY_WORLD_NAME;
-  }
-}
-
 /**
  * WebKit Remote Addresses look like:
  *
diff --git a/tests/page/page-expose-function.spec.ts b/tests/page/page-expose-function.spec.ts
index becd285dcd..f5ea26f781 100644
--- a/tests/page/page-expose-function.spec.ts
+++ b/tests/page/page-expose-function.spec.ts
@@ -16,7 +16,6 @@
  */
 
 import { test as it, expect } from './pageTest';
-import { attachFrame } from '../config/utils';
 import type { ElementHandle } from '../../index';
 
 it('exposeBinding should work', async ({page}) => {
@@ -238,37 +237,6 @@ it('should not result in unhandled rejection', async ({page, isAndroid}) => {
   expect(await page.evaluate('1 + 1').catch(e => e)).toBeInstanceOf(Error);
 });
 
-it('should work with internal bindings', async ({page, toImpl, server, mode, browserName, isElectron, isAndroid}) => {
-  it.skip(mode !== 'default');
-  it.skip(browserName !== 'chromium');
-  it.skip(isAndroid);
-  it.skip(isElectron);
-
-  const implPage: import('../../src/server/page').Page = toImpl(page);
-  let foo;
-  await implPage.exposeBinding('foo', false, ({}, arg) => {
-    foo = arg;
-  }, 'utility');
-  expect(await page.evaluate('!!window.foo')).toBe(false);
-  expect(await implPage.mainFrame().evaluateExpression('!!window.foo', false, {}, 'utility')).toBe(true);
-  expect(foo).toBe(undefined);
-  await implPage.mainFrame().evaluateExpression('window.foo(123)', false, {}, 'utility');
-  expect(foo).toBe(123);
-
-  // should work after reload
-  await page.goto(server.EMPTY_PAGE);
-  expect(await page.evaluate('!!window.foo')).toBe(false);
-  await implPage.mainFrame().evaluateExpression('window.foo(456)', false, {}, 'utility');
-  expect(foo).toBe(456);
-
-  // should work inside frames
-  const frame = await attachFrame(page, 'myframe', server.CROSS_PROCESS_PREFIX + '/empty.html');
-  expect(await frame.evaluate('!!window.foo')).toBe(false);
-  const implFrame: import('../../src/server/frames').Frame = toImpl(frame);
-  await implFrame.evaluateExpression('window.foo(789)', false, {}, 'utility');
-  expect(foo).toBe(789);
-});
-
 it('exposeBinding(handle) should work with element handles', async ({ page}) => {
   let cb;
   const promise = new Promise(f => cb = f);