chore: add new UnsupportedOperation Error (#11322)

docs/api/index.md

@@ -42,6 +42,7 @@ sidebar_label: API
 | [TimeoutError](./puppeteer.timeouterror.md)                           | TimeoutError is emitted whenever certain operations are terminated due to timeout.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
 | [Touchscreen](./puppeteer.touchscreen.md)                             | The Touchscreen class exposes touchscreen events.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
 | [Tracing](./puppeteer.tracing.md)                                     | The Tracing class exposes the tracing audit interface.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+| [UnsupportedOperation](./puppeteer.unsupportedoperation.md)           | Puppeteer will throw this error if a method is not supported by the currently used protocol                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
 | [WebWorker](./puppeteer.webworker.md)                                 | This class represents a [WebWorker](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
 
 ## Enumerations

docs/api/puppeteer.browser.disconnect.md

@@ -10,7 +10,7 @@ Disconnects Puppeteer from this [browser](./puppeteer.browser.md), but leaves th
 
 ```typescript
 class Browser {
-  disconnect(): void;
+  abstract disconnect(): void;
 }
 ```
 

docs/api/puppeteer.browser.process.md

@@ -10,7 +10,7 @@ Gets the associated [ChildProcess](https://nodejs.org/api/child_process.html#cla
 
 ```typescript
 class Browser {
-  process(): ChildProcess | null;
+  abstract process(): ChildProcess | null;
 }
 ```
 

docs/api/puppeteer.browser.useragent.md

@@ -12,7 +12,7 @@ Gets this [browser's](./puppeteer.browser.md) original user agent.
 
 ```typescript
 class Browser {
-  userAgent(): Promise<string>;
+  abstract userAgent(): Promise<string>;
 }
 ```
 

docs/api/puppeteer.browsercontext.clearpermissionoverrides.md

@@ -10,7 +10,7 @@ Clears all permission overrides for this [browser context](./puppeteer.browserco
 
 ```typescript
 class BrowserContext {
-  clearPermissionOverrides(): Promise<void>;
+  abstract clearPermissionOverrides(): Promise<void>;
 }
 ```
 

docs/api/puppeteer.browsercontext.overridepermissions.md

@@ -10,7 +10,10 @@ Grants this [browser context](./puppeteer.browsercontext.md) the given `permissi
 
 ```typescript
 class BrowserContext {
-  overridePermissions(origin: string, permissions: Permission[]): Promise<void>;
+  abstract overridePermissions(
+    origin: string,
+    permissions: Permission[]
+  ): Promise<void>;
 }
 ```
 

docs/api/puppeteer.browsercontext.targets.md

@@ -10,7 +10,7 @@ Gets all active [targets](./puppeteer.target.md) inside this [browser context](.
 
 ```typescript
 class BrowserContext {
-  targets(): Target[];
+  abstract targets(): Target[];
 }
 ```
 

docs/api/puppeteer.cdpsession.connection.md

@@ -8,7 +8,7 @@ sidebar_label: CDPSession.connection
 
 ```typescript
 class CDPSession {
-  connection(): Connection | undefined;
+  abstract connection(): Connection | undefined;
 }
 ```
 

docs/api/puppeteer.cdpsession.detach.md

@@ -10,7 +10,7 @@ Detaches the cdpSession from the target. Once detached, the cdpSession object wo
 
 ```typescript
 class CDPSession {
-  detach(): Promise<void>;
+  abstract detach(): Promise<void>;
 }
 ```
 

docs/api/puppeteer.cdpsession.id.md

@@ -10,7 +10,7 @@ Returns the session's id.
 
 ```typescript
 class CDPSession {
-  id(): string;
+  abstract id(): string;
 }
 ```
 

docs/api/puppeteer.cdpsession.send.md

@@ -8,7 +8,7 @@ sidebar_label: CDPSession.send
 
 ```typescript
 class CDPSession {
-  send<T extends keyof ProtocolMapping.Commands>(
+  abstract send<T extends keyof ProtocolMapping.Commands>(
     method: T,
     ...paramArgs: ProtocolMapping.Commands[T]['paramsType']
   ): Promise<ProtocolMapping.Commands[T]['returnType']>;

docs/api/puppeteer.elementhandle.uploadfile.md

@@ -10,7 +10,7 @@ Sets the value of an [input element](https://developer.mozilla.org/en-US/docs/We
 
 ```typescript
 class ElementHandle {
-  uploadFile(
+  abstract uploadFile(
     this: ElementHandle<HTMLInputElement>,
     ...paths: string[]
   ): Promise<void>;

docs/api/puppeteer.frame.isoopframe.md

@@ -10,7 +10,7 @@ Is `true` if the frame is an out-of-process (OOP) frame. Otherwise, `false`.
 
 ```typescript
 class Frame {
-  isOOPFrame(): boolean;
+  abstract isOOPFrame(): boolean;
 }
 ```
 

docs/api/puppeteer.frame.md

@@ -100,7 +100,6 @@ console.log(text);
 | [title()](./puppeteer.frame.title.md)                                                |           | The frame's title.                                                                                                                                                                                                                                                         |
 | [type(selector, text, options)](./puppeteer.frame.type.md)                           |           | Sends a <code>keydown</code>, <code>keypress</code>/<code>input</code>, and <code>keyup</code> event for each character in the text.                                                                                                                                       |
 | [url()](./puppeteer.frame.url.md)                                                    |           | The frame's URL.                                                                                                                                                                                                                                                           |
-| [waitForDevicePrompt(options)](./puppeteer.frame.waitfordeviceprompt.md)             |           | <p>This method is typically coupled with an action that triggers a device request from an api such as WebBluetooth.</p><p>:::caution</p><p>This must be called before the device request is made. It will not return a currently active device prompt.</p><p>:::</p>       |
 | [waitForFunction(pageFunction, options, args)](./puppeteer.frame.waitforfunction.md) |           |                                                                                                                                                                                                                                                                            |
 | [waitForNavigation(options)](./puppeteer.frame.waitfornavigation.md)                 |           | <p>Waits for the frame to navigate. It is useful for when you run code which will indirectly cause the frame to navigate.</p><p>Usage of the [History API](https://developer.mozilla.org/en-US/docs/Web/API/History_API) to change the URL is considered a navigation.</p> |
 | [waitForSelector(selector, options)](./puppeteer.frame.waitforselector.md)           |           | <p>Waits for an element matching the given selector to appear in the frame.</p><p>This method works across navigations.</p>                                                                                                                                                |

docs/api/puppeteer.frame.waitfordeviceprompt.md

@@ -1,45 +0,0 @@
----
-sidebar_label: Frame.waitForDevicePrompt
----
-
-# Frame.waitForDevicePrompt() method
-
-This method is typically coupled with an action that triggers a device request from an api such as WebBluetooth.
-
-:::caution
-
-This must be called before the device request is made. It will not return a currently active device prompt.
-
-:::
-
-#### Signature:
-
-```typescript
-class Frame {
-  waitForDevicePrompt(
-    options?: WaitTimeoutOptions
-  ): Promise<DeviceRequestPrompt>;
-}
-```
-
-## Parameters
-
-| Parameter | Type                                                    | Description  |
-| --------- | ------------------------------------------------------- | ------------ |
-| options   | [WaitTimeoutOptions](./puppeteer.waittimeoutoptions.md) | _(Optional)_ |
-
-**Returns:**
-
-Promise&lt;[DeviceRequestPrompt](./puppeteer.devicerequestprompt.md)&gt;
-
-## Example
-
-```ts
-const [devicePrompt] = Promise.all([
-  frame.waitForDevicePrompt(),
-  frame.click('#connect-bluetooth'),
-]);
-await devicePrompt.select(
-  await devicePrompt.waitForDevice(({name}) => name.includes('My Device'))
-);
-```

docs/api/puppeteer.mouse.click.md

@@ -10,7 +10,7 @@ Shortcut for `mouse.move`, `mouse.down` and `mouse.up`.
 
 ```typescript
 class Mouse {
-  click(
+  abstract click(
     x: number,
     y: number,
     options?: Readonly<MouseClickOptions>

docs/api/puppeteer.mouse.down.md

@@ -10,7 +10,7 @@ Presses the mouse.
 
 ```typescript
 class Mouse {
-  down(options?: Readonly<MouseOptions>): Promise<void>;
+  abstract down(options?: Readonly<MouseOptions>): Promise<void>;
 }
 ```
 

docs/api/puppeteer.mouse.drag.md

@@ -10,7 +10,7 @@ Dispatches a `drag` event.
 
 ```typescript
 class Mouse {
-  drag(start: Point, target: Point): Promise<Protocol.Input.DragData>;
+  abstract drag(start: Point, target: Point): Promise<Protocol.Input.DragData>;
 }
 ```
 

docs/api/puppeteer.mouse.draganddrop.md

@@ -10,7 +10,7 @@ Performs a drag, dragenter, dragover, and drop in sequence.
 
 ```typescript
 class Mouse {
-  dragAndDrop(
+  abstract dragAndDrop(
     start: Point,
     target: Point,
     options?: {

docs/api/puppeteer.mouse.dragenter.md

@@ -10,7 +10,10 @@ Dispatches a `dragenter` event.
 
 ```typescript
 class Mouse {
-  dragEnter(target: Point, data: Protocol.Input.DragData): Promise<void>;
+  abstract dragEnter(
+    target: Point,
+    data: Protocol.Input.DragData
+  ): Promise<void>;
 }
 ```
 

docs/api/puppeteer.mouse.dragover.md

@@ -10,7 +10,10 @@ Dispatches a `dragover` event.
 
 ```typescript
 class Mouse {
-  dragOver(target: Point, data: Protocol.Input.DragData): Promise<void>;
+  abstract dragOver(
+    target: Point,
+    data: Protocol.Input.DragData
+  ): Promise<void>;
 }
 ```
 

docs/api/puppeteer.mouse.drop.md

@@ -10,7 +10,7 @@ Performs a dragenter, dragover, and drop in sequence.
 
 ```typescript
 class Mouse {
-  drop(target: Point, data: Protocol.Input.DragData): Promise<void>;
+  abstract drop(target: Point, data: Protocol.Input.DragData): Promise<void>;
 }
 ```
 

docs/api/puppeteer.mouse.md

@@ -9,7 +9,7 @@ The Mouse class operates in main-frame CSS pixels relative to the top-left corne
 #### Signature:
 
 ```typescript
-export declare class Mouse
+export declare abstract class Mouse
 ```
 
 ## Remarks

docs/api/puppeteer.mouse.move.md

@@ -10,7 +10,7 @@ Moves the mouse to the given coordinate.
 
 ```typescript
 class Mouse {
-  move(
+  abstract move(
     x: number,
     y: number,
     options?: Readonly<MouseMoveOptions>

docs/api/puppeteer.mouse.reset.md

@@ -10,7 +10,7 @@ Resets the mouse to the default state: No buttons pressed; position at (0,0).
 
 ```typescript
 class Mouse {
-  reset(): Promise<void>;
+  abstract reset(): Promise<void>;
 }
 ```
 

docs/api/puppeteer.mouse.up.md

@@ -10,7 +10,7 @@ Releases the mouse.
 
 ```typescript
 class Mouse {
-  up(options?: Readonly<MouseOptions>): Promise<void>;
+  abstract up(options?: Readonly<MouseOptions>): Promise<void>;
 }
 ```
 

docs/api/puppeteer.mouse.wheel.md

@@ -10,7 +10,7 @@ Dispatches a `mousewheel` event.
 
 ```typescript
 class Mouse {
-  wheel(options?: Readonly<MouseWheelOptions>): Promise<void>;
+  abstract wheel(options?: Readonly<MouseWheelOptions>): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.authenticate.md

@@ -10,7 +10,7 @@ Provide credentials for `HTTP authentication`.
 
 ```typescript
 class Page {
-  authenticate(credentials: Credentials): Promise<void>;
+  abstract authenticate(credentials: Credentials): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.cookies.md

@@ -10,7 +10,7 @@ If no URLs are specified, this method returns cookies for the current page URL.
 
 ```typescript
 class Page {
-  cookies(...urls: string[]): Promise<Protocol.Network.Cookie[]>;
+  abstract cookies(...urls: string[]): Promise<Protocol.Network.Cookie[]>;
 }
 ```
 

docs/api/puppeteer.page.createcdpsession.md

@@ -10,7 +10,7 @@ Creates a Chrome Devtools Protocol session attached to the page.
 
 ```typescript
 class Page {
-  createCDPSession(): Promise<CDPSession>;
+  abstract createCDPSession(): Promise<CDPSession>;
 }
 ```
 

docs/api/puppeteer.page.createpdfstream.md

@@ -10,7 +10,7 @@ Generates a PDF of the page with the `print` CSS media type.
 
 ```typescript
 class Page {
-  createPDFStream(options?: PDFOptions): Promise<Readable>;
+  abstract createPDFStream(options?: PDFOptions): Promise<Readable>;
 }
 ```
 

docs/api/puppeteer.page.deletecookie.md

@@ -8,7 +8,7 @@ sidebar_label: Page.deleteCookie
 
 ```typescript
 class Page {
-  deleteCookie(
+  abstract deleteCookie(
     ...cookies: Protocol.Network.DeleteCookiesRequest[]
   ): Promise<void>;
 }

docs/api/puppeteer.page.emulatecputhrottling.md

@@ -10,7 +10,7 @@ Enables CPU throttling to emulate slow CPUs.
 
 ```typescript
 class Page {
-  emulateCPUThrottling(factor: number | null): Promise<void>;
+  abstract emulateCPUThrottling(factor: number | null): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.emulateidlestate.md

@@ -10,7 +10,7 @@ Emulates the idle state. If no arguments set, clears idle state emulation.
 
 ```typescript
 class Page {
-  emulateIdleState(overrides?: {
+  abstract emulateIdleState(overrides?: {
     isUserActive: boolean;
     isScreenUnlocked: boolean;
   }): Promise<void>;

docs/api/puppeteer.page.emulatemediafeatures.md

@@ -8,7 +8,7 @@ sidebar_label: Page.emulateMediaFeatures
 
 ```typescript
 class Page {
-  emulateMediaFeatures(features?: MediaFeature[]): Promise<void>;
+  abstract emulateMediaFeatures(features?: MediaFeature[]): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.emulatemediatype.md

@@ -8,7 +8,7 @@ sidebar_label: Page.emulateMediaType
 
 ```typescript
 class Page {
-  emulateMediaType(type?: string): Promise<void>;
+  abstract emulateMediaType(type?: string): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.emulatenetworkconditions.md

@@ -12,7 +12,7 @@ A list of predefined network conditions can be used by importing [PredefinedNetw
 
 ```typescript
 class Page {
-  emulateNetworkConditions(
+  abstract emulateNetworkConditions(
     networkConditions: NetworkConditions | null
   ): Promise<void>;
 }

docs/api/puppeteer.page.emulatetimezone.md

@@ -8,7 +8,7 @@ sidebar_label: Page.emulateTimezone
 
 ```typescript
 class Page {
-  emulateTimezone(timezoneId?: string): Promise<void>;
+  abstract emulateTimezone(timezoneId?: string): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.emulatevisiondeficiency.md

@@ -10,7 +10,7 @@ Simulates the given vision deficiency on the page.
 
 ```typescript
 class Page {
-  emulateVisionDeficiency(
+  abstract emulateVisionDeficiency(
     type?: Protocol.Emulation.SetEmulatedVisionDeficiencyRequest['type']
   ): Promise<void>;
 }

docs/api/puppeteer.page.goback.md

@@ -10,7 +10,7 @@ This method navigate to the previous page in history.
 
 ```typescript
 class Page {
-  goBack(options?: WaitForOptions): Promise<HTTPResponse | null>;
+  abstract goBack(options?: WaitForOptions): Promise<HTTPResponse | null>;
 }
 ```
 

docs/api/puppeteer.page.goforward.md

@@ -10,7 +10,7 @@ This method navigate to the next page in history.
 
 ```typescript
 class Page {
-  goForward(options?: WaitForOptions): Promise<HTTPResponse | null>;
+  abstract goForward(options?: WaitForOptions): Promise<HTTPResponse | null>;
 }
 ```
 

docs/api/puppeteer.page.isdraginterceptionenabled.md

@@ -14,7 +14,7 @@ sidebar_label: Page.isDragInterceptionEnabled
 
 ```typescript
 class Page {
-  isDragInterceptionEnabled(): boolean;
+  abstract isDragInterceptionEnabled(): boolean;
 }
 ```
 

docs/api/puppeteer.page.isjavascriptenabled.md

@@ -10,7 +10,7 @@ sidebar_label: Page.isJavaScriptEnabled
 
 ```typescript
 class Page {
-  isJavaScriptEnabled(): boolean;
+  abstract isJavaScriptEnabled(): boolean;
 }
 ```
 

docs/api/puppeteer.page.isserviceworkerbypassed.md

@@ -10,7 +10,7 @@ sidebar_label: Page.isServiceWorkerBypassed
 
 ```typescript
 class Page {
-  isServiceWorkerBypassed(): boolean;
+  abstract isServiceWorkerBypassed(): boolean;
 }
 ```
 

docs/api/puppeteer.page.metrics.md

@@ -10,7 +10,7 @@ Object containing metrics as key/value pairs.
 
 ```typescript
 class Page {
-  metrics(): Promise<Metrics>;
+  abstract metrics(): Promise<Metrics>;
 }
 ```
 

docs/api/puppeteer.page.removeexposedfunction.md

@@ -10,7 +10,7 @@ The method removes a previously added function via $[Page.exposeFunction()](./pu
 
 ```typescript
 class Page {
-  removeExposedFunction(name: string): Promise<void>;
+  abstract removeExposedFunction(name: string): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.setbypassserviceworker.md

@@ -10,7 +10,7 @@ Toggles ignoring of service worker for each request.
 
 ```typescript
 class Page {
-  setBypassServiceWorker(bypass: boolean): Promise<void>;
+  abstract setBypassServiceWorker(bypass: boolean): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.setcookie.md

@@ -8,7 +8,7 @@ sidebar_label: Page.setCookie
 
 ```typescript
 class Page {
-  setCookie(...cookies: Protocol.Network.CookieParam[]): Promise<void>;
+  abstract setCookie(...cookies: Protocol.Network.CookieParam[]): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.setdraginterception.md

@@ -12,7 +12,7 @@ sidebar_label: Page.setDragInterception
 
 ```typescript
 class Page {
-  setDragInterception(enabled: boolean): Promise<void>;
+  abstract setDragInterception(enabled: boolean): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.setextrahttpheaders.md

@@ -22,7 +22,7 @@ page.setExtraHTTPHeaders does not guarantee the order of headers in the outgoing
 
 ```typescript
 class Page {
-  setExtraHTTPHeaders(headers: Record<string, string>): Promise<void>;
+  abstract setExtraHTTPHeaders(headers: Record<string, string>): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.setgeolocation.md

@@ -10,7 +10,7 @@ Sets the page's geolocation.
 
 ```typescript
 class Page {
-  setGeolocation(options: GeolocationOptions): Promise<void>;
+  abstract setGeolocation(options: GeolocationOptions): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.setjavascriptenabled.md

@@ -8,7 +8,7 @@ sidebar_label: Page.setJavaScriptEnabled
 
 ```typescript
 class Page {
-  setJavaScriptEnabled(enabled: boolean): Promise<void>;
+  abstract setJavaScriptEnabled(enabled: boolean): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.setofflinemode.md

@@ -12,7 +12,7 @@ It does not change the parameters used in [Page.emulateNetworkConditions()](./pu
 
 ```typescript
 class Page {
-  setOfflineMode(enabled: boolean): Promise<void>;
+  abstract setOfflineMode(enabled: boolean): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.setrequestinterception.md

@@ -14,7 +14,7 @@ See the [Request interception guide](https://pptr.dev/next/guides/request-interc
 
 ```typescript
 class Page {
-  setRequestInterception(value: boolean): Promise<void>;
+  abstract setRequestInterception(value: boolean): Promise<void>;
 }
 ```
 

docs/api/puppeteer.page.target.md

@@ -10,7 +10,7 @@ A target this page was created from.
 
 ```typescript
 class Page {
-  target(): Target;
+  abstract target(): Target;
 }
 ```
 

docs/api/puppeteer.page.waitfordeviceprompt.md

@@ -16,7 +16,7 @@ This must be called before the device request is made. It will not return a curr
 
 ```typescript
 class Page {
-  waitForDevicePrompt(
+  abstract waitForDevicePrompt(
     options?: WaitTimeoutOptions
   ): Promise<DeviceRequestPrompt>;
 }

docs/api/puppeteer.page.waitforfilechooser.md

@@ -16,7 +16,9 @@ This must be called before the file chooser is launched. It will not return a cu
 
 ```typescript
 class Page {
-  waitForFileChooser(options?: WaitTimeoutOptions): Promise<FileChooser>;
+  abstract waitForFileChooser(
+    options?: WaitTimeoutOptions
+  ): Promise<FileChooser>;
 }
 ```
 

docs/api/puppeteer.page.workers.md

@@ -10,7 +10,7 @@ All of the dedicated [WebWorkers](https://developer.mozilla.org/en-US/docs/Web/A
 
 ```typescript
 class Page {
-  workers(): WebWorker[];
+  abstract workers(): WebWorker[];
 }
 ```
 

docs/api/puppeteer.target.browser.md

@@ -10,7 +10,7 @@ Get the browser the target belongs to.
 
 ```typescript
 class Target {
-  browser(): Browser;
+  abstract browser(): Browser;
 }
 ```
 

docs/api/puppeteer.target.browsercontext.md

@@ -10,7 +10,7 @@ Get the browser context the target belongs to.
 
 ```typescript
 class Target {
-  browserContext(): BrowserContext;
+  abstract browserContext(): BrowserContext;
 }
 ```
 

docs/api/puppeteer.target.createcdpsession.md

@@ -10,7 +10,7 @@ Creates a Chrome Devtools Protocol session attached to the target.
 
 ```typescript
 class Target {
-  createCDPSession(): Promise<CDPSession>;
+  abstract createCDPSession(): Promise<CDPSession>;
 }
 ```
 

docs/api/puppeteer.target.md

@@ -9,7 +9,7 @@ Target represents a [CDP target](https://chromedevtools.github.io/devtools-proto
 #### Signature:
 
 ```typescript
-export declare class Target
+export declare abstract class Target
 ```
 
 ## Remarks

docs/api/puppeteer.target.opener.md

@@ -10,7 +10,7 @@ Get the target that opened this target. Top-level targets return `null`.
 
 ```typescript
 class Target {
-  opener(): Target | undefined;
+  abstract opener(): Target | undefined;
 }
 ```
 

docs/api/puppeteer.target.type.md

@@ -10,7 +10,7 @@ Identifies what kind of target this is.
 
 ```typescript
 class Target {
-  type(): TargetType;
+  abstract type(): TargetType;
 }
 ```
 

docs/api/puppeteer.target.url.md

@@ -8,7 +8,7 @@ sidebar_label: Target.url
 
 ```typescript
 class Target {
-  url(): string;
+  abstract url(): string;
 }
 ```
 

docs/api/puppeteer.unsupportedoperation.md

@@ -0,0 +1,15 @@
+---
+sidebar_label: UnsupportedOperation
+---
+
+# UnsupportedOperation class
+
+Puppeteer will throw this error if a method is not supported by the currently used protocol
+
+#### Signature:
+
+```typescript
+export declare class UnsupportedOperation extends CustomError
+```
+
+**Extends:** [CustomError](./puppeteer.customerror.md)

packages/puppeteer-core/src/api/Browser.ts

@@ -245,20 +245,6 @@ export abstract class Browser extends EventEmitter<BrowserEvents> {
     super();
   }
 
-  /**
-   * @internal
-   */
-  _attach(): Promise<void> {
-    throw new Error('Not implemented');
-  }
-
-  /**
-   * @internal
-   */
-  _detach(): void {
-    throw new Error('Not implemented');
-  }
-
   /**
    * Gets the associated
    * {@link https://nodejs.org/api/child_process.html#class-childprocess | ChildProcess}.
@@ -266,16 +252,7 @@ export abstract class Browser extends EventEmitter<BrowserEvents> {
    * @returns `null` if this instance was connected to via
    * {@link Puppeteer.connect}.
    */
-  process(): ChildProcess | null {
+  abstract process(): ChildProcess | null;
-    throw new Error('Not implemented');
-  }
-
-  /**
-   * @internal
-   */
-  _getIsPageTargetCallback(): IsPageTargetCallback | undefined {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Creates a new incognito {@link BrowserContext | browser context}.
@@ -316,14 +293,6 @@ export abstract class Browser extends EventEmitter<BrowserEvents> {
    */
   abstract defaultBrowserContext(): BrowserContext;
 
-  /**
-   * @internal
-   */
-  _disposeContext(contextId?: string): Promise<void>;
-  _disposeContext(): Promise<void> {
-    throw new Error('Not implemented');
-  }
-
   /**
    * Gets the WebSocket URL to connect to this {@link Browser | browser}.
    *
@@ -346,14 +315,6 @@ export abstract class Browser extends EventEmitter<BrowserEvents> {
    */
   abstract newPage(): Promise<Page>;
 
-  /**
-   * @internal
-   */
-  _createPageInContext(contextId?: string): Promise<Page>;
-  _createPageInContext(): Promise<Page> {
-    throw new Error('Not implemented');
-  }
-
   /**
    * Gets all active {@link Target | targets}.
    *
@@ -439,9 +400,7 @@ export abstract class Browser extends EventEmitter<BrowserEvents> {
    * {@link Page | Pages} can override the user agent with
    * {@link Page.setUserAgent}.
    */
-  userAgent(): Promise<string> {
+  abstract userAgent(): Promise<string>;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Closes this {@link Browser | browser} and all associated
@@ -453,9 +412,7 @@ export abstract class Browser extends EventEmitter<BrowserEvents> {
    * Disconnects Puppeteer from this {@link Browser | browser}, but leaves the
    * process running.
    */
-  disconnect(): void {
+  abstract disconnect(): void;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Whether Puppeteer is connected to this {@link Browser | browser}.

packages/puppeteer-core/src/api/BrowserContext.ts

@@ -107,9 +107,7 @@ export abstract class BrowserContext extends EventEmitter<BrowserContextEvents>
    * Gets all active {@link Target | targets} inside this
    * {@link BrowserContext | browser context}.
    */
-  targets(): Target[] {
+  abstract targets(): Target[];
-    throw new Error('Not implemented');
-  }
 
   /**
    * Waits until a {@link Target | target} matching the given `predicate`
@@ -167,10 +165,10 @@ export abstract class BrowserContext extends EventEmitter<BrowserContextEvents>
    * @param permissions - An array of permissions to grant. All permissions that
    * are not listed here will be automatically denied.
    */
-  overridePermissions(origin: string, permissions: Permission[]): Promise<void>;
+  abstract overridePermissions(
-  overridePermissions(): Promise<void> {
+    origin: string,
-    throw new Error('Not implemented');
+    permissions: Permission[]
-  }
+  ): Promise<void>;
 
   /**
    * Clears all permission overrides for this
@@ -186,9 +184,7 @@ export abstract class BrowserContext extends EventEmitter<BrowserContextEvents>
    * context.clearPermissionOverrides();
    * ```
    */
-  clearPermissionOverrides(): Promise<void> {
+  abstract clearPermissionOverrides(): Promise<void>;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Creates a new {@link Page | page} in this

packages/puppeteer-core/src/api/CDPSession.ts

@@ -84,9 +84,7 @@ export abstract class CDPSession extends EventEmitter<CDPSessionEvents> {
     super();
   }
 
-  connection(): Connection | undefined {
+  abstract connection(): Connection | undefined;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Parent session in terms of CDP's auto-attach mechanism.
@@ -97,28 +95,19 @@ export abstract class CDPSession extends EventEmitter<CDPSessionEvents> {
     return undefined;
   }
 
-  send<T extends keyof ProtocolMapping.Commands>(
+  abstract send<T extends keyof ProtocolMapping.Commands>(
     method: T,
     ...paramArgs: ProtocolMapping.Commands[T]['paramsType']
   ): Promise<ProtocolMapping.Commands[T]['returnType']>;
-  send<T extends keyof ProtocolMapping.Commands>(): Promise<
-    ProtocolMapping.Commands[T]['returnType']
-  > {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Detaches the cdpSession from the target. Once detached, the cdpSession object
    * won't emit any events and can't be used to send messages.
    */
-  async detach(): Promise<void> {
+  abstract detach(): Promise<void>;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Returns the session's id.
    */
-  id(): string {
+  abstract id(): string;
-    throw new Error('Not implemented');
-  }
 }

packages/puppeteer-core/src/api/ElementHandle.ts

@@ -962,14 +962,12 @@ export abstract class ElementHandle<
    * {@link https://nodejs.org/api/process.html#process_process_cwd | current working directory}.
    * For locals script connecting to remote chrome environments, paths must be
    * absolute.
+   *
    */
-  async uploadFile(
+  abstract uploadFile(
     this: ElementHandle<HTMLInputElement>,
     ...paths: string[]
   ): Promise<void>;
-  async uploadFile(this: ElementHandle<HTMLInputElement>): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * This method scrolls element into view if needed, and then uses

packages/puppeteer-core/src/api/Frame.ts

@@ -312,9 +312,7 @@ export abstract class Frame extends EventEmitter<FrameEvents> {
    * Is `true` if the frame is an out-of-process (OOP) frame. Otherwise,
    * `false`.
    */
-  isOOPFrame(): boolean {
+  abstract isOOPFrame(): boolean;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Navigates the frame to the given `url`.
@@ -1197,26 +1195,10 @@ export abstract class Frame extends EventEmitter<FrameEvents> {
    *   await devicePrompt.waitForDevice(({name}) => name.includes('My Device'))
    * );
    * ```
+   *
+   * @internal
    */
-  waitForDevicePrompt(
+  abstract waitForDevicePrompt(
     options?: WaitTimeoutOptions
   ): Promise<DeviceRequestPrompt>;
-
-  /**
-   * @internal
-   */
-  waitForDevicePrompt(): Promise<DeviceRequestPrompt> {
-    throw new Error('Not implemented');
-  }
-
-  /**
-   * @internal
-   */
-  exposeFunction<Args extends unknown[], Ret>(
-    name: string,
-    fn: (...args: Args) => Awaitable<Ret>
-  ): Promise<void>;
-  exposeFunction(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 }

packages/puppeteer-core/src/api/Input.ts

@@ -355,7 +355,7 @@ export type MouseButton = (typeof MouseButton)[keyof typeof MouseButton];
  *
  * @public
  */
-export class Mouse {
+export abstract class Mouse {
   /**
    * @internal
    */
@@ -365,9 +365,7 @@ export class Mouse {
    * Resets the mouse to the default state: No buttons pressed; position at
    * (0,0).
    */
-  async reset(): Promise<void> {
+  abstract reset(): Promise<void>;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Moves the mouse to the given coordinate.
@@ -376,34 +374,25 @@ export class Mouse {
    * @param y - Vertical position of the mouse.
    * @param options - Options to configure behavior.
    */
-  async move(
+  abstract move(
     x: number,
     y: number,
     options?: Readonly<MouseMoveOptions>
   ): Promise<void>;
-  async move(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Presses the mouse.
    *
    * @param options - Options to configure behavior.
    */
-  async down(options?: Readonly<MouseOptions>): Promise<void>;
+  abstract down(options?: Readonly<MouseOptions>): Promise<void>;
-  async down(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Releases the mouse.
    *
    * @param options - Options to configure behavior.
    */
-  async up(options?: Readonly<MouseOptions>): Promise<void>;
+  abstract up(options?: Readonly<MouseOptions>): Promise<void>;
-  async up(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Shortcut for `mouse.move`, `mouse.down` and `mouse.up`.
@@ -412,14 +401,11 @@ export class Mouse {
    * @param y - Vertical position of the mouse.
    * @param options - Options to configure behavior.
    */
-  async click(
+  abstract click(
     x: number,
     y: number,
     options?: Readonly<MouseClickOptions>
   ): Promise<void>;
-  async click(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Dispatches a `mousewheel` event.
@@ -443,50 +429,41 @@ export class Mouse {
    * await page.mouse.wheel({deltaY: -100});
    * ```
    */
-  async wheel(options?: Readonly<MouseWheelOptions>): Promise<void>;
+  abstract wheel(options?: Readonly<MouseWheelOptions>): Promise<void>;
-  async wheel(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Dispatches a `drag` event.
    * @param start - starting point for drag
    * @param target - point to drag to
    */
-  async drag(start: Point, target: Point): Promise<Protocol.Input.DragData>;
+  abstract drag(start: Point, target: Point): Promise<Protocol.Input.DragData>;
-  async drag(): Promise<Protocol.Input.DragData> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Dispatches a `dragenter` event.
    * @param target - point for emitting `dragenter` event
    * @param data - drag data containing items and operations mask
    */
-  async dragEnter(target: Point, data: Protocol.Input.DragData): Promise<void>;
+  abstract dragEnter(
-  async dragEnter(): Promise<void> {
+    target: Point,
-    throw new Error('Not implemented');
+    data: Protocol.Input.DragData
-  }
+  ): Promise<void>;
 
   /**
    * Dispatches a `dragover` event.
    * @param target - point for emitting `dragover` event
    * @param data - drag data containing items and operations mask
    */
-  async dragOver(target: Point, data: Protocol.Input.DragData): Promise<void>;
+  abstract dragOver(
-  async dragOver(): Promise<void> {
+    target: Point,
-    throw new Error('Not implemented');
+    data: Protocol.Input.DragData
-  }
+  ): Promise<void>;
 
   /**
    * Performs a dragenter, dragover, and drop in sequence.
    * @param target - point to drop on
    * @param data - drag data containing items and operations mask
    */
-  async drop(target: Point, data: Protocol.Input.DragData): Promise<void>;
+  abstract drop(target: Point, data: Protocol.Input.DragData): Promise<void>;
-  async drop(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Performs a drag, dragenter, dragover, and drop in sequence.
@@ -496,14 +473,11 @@ export class Mouse {
    * if specified, is the time to wait between `dragover` and `drop` in milliseconds.
    * Defaults to 0.
    */
-  async dragAndDrop(
+  abstract dragAndDrop(
     start: Point,
     target: Point,
     options?: {delay?: number}
   ): Promise<void>;
-  async dragAndDrop(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 }
 
 /**

packages/puppeteer-core/src/api/JSHandle.ts

@@ -67,9 +67,7 @@ export abstract class JSHandle<T = unknown> {
   /**
    * @internal
    */
-  get disposed(): boolean {
+  abstract get disposed(): boolean;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Evaluates the given function with the current handle as its first argument.

packages/puppeteer-core/src/api/Page.ts

@@ -620,9 +620,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
   /**
    * `true` if the service worker are being bypassed, `false` otherwise.
    */
-  isServiceWorkerBypassed(): boolean {
+  abstract isServiceWorkerBypassed(): boolean;
-    throw new Error('Not implemented');
-  }
 
   /**
    * `true` if drag events are being intercepted, `false` otherwise.
@@ -631,16 +629,12 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * drag APIs found on {@link ElementHandle} to drag (or just use the
    * {@link Page.mouse}).
    */
-  isDragInterceptionEnabled(): boolean {
+  abstract isDragInterceptionEnabled(): boolean;
-    throw new Error('Not implemented');
-  }
 
   /**
    * `true` if the page has JavaScript enabled, `false` otherwise.
    */
-  isJavaScriptEnabled(): boolean {
+  abstract isJavaScriptEnabled(): boolean;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Listen to page events.
@@ -725,10 +719,9 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * await fileChooser.accept(['/tmp/myfile.pdf']);
    * ```
    */
-  waitForFileChooser(options?: WaitTimeoutOptions): Promise<FileChooser>;
+  abstract waitForFileChooser(
-  waitForFileChooser(): Promise<FileChooser> {
+    options?: WaitTimeoutOptions
-    throw new Error('Not implemented');
+  ): Promise<FileChooser>;
-  }
 
   /**
    * Sets the page's geolocation.
@@ -743,17 +736,12 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * await page.setGeolocation({latitude: 59.95, longitude: 30.31667});
    * ```
    */
-  async setGeolocation(options: GeolocationOptions): Promise<void>;
+  abstract setGeolocation(options: GeolocationOptions): Promise<void>;
-  async setGeolocation(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * A target this page was created from.
    */
-  target(): Target {
+  abstract target(): Target;
-    throw new Error('Not implemented');
-  }
 
   /**
    * Get the browser the page belongs to.
@@ -776,9 +764,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
   /**
    * Creates a Chrome Devtools Protocol session attached to the page.
    */
-  createCDPSession(): Promise<CDPSession> {
+  abstract createCDPSession(): Promise<CDPSession>;
-    throw new Error('Not implemented');
-  }
 
   /**
    * {@inheritDoc Keyboard}
@@ -788,9 +774,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
   /**
    * {@inheritDoc Touchscreen}
    */
-  get touchscreen(): Touchscreen {
+  abstract get touchscreen(): Touchscreen;
-    throw new Error('Not implemented');
-  }
 
   /**
    * {@inheritDoc Coverage}
@@ -820,9 +804,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * @remarks
    * This does not contain ServiceWorkers
    */
-  workers(): WebWorker[] {
+  abstract workers(): WebWorker[];
-    throw new Error('Not implemented');
-  }
 
   /**
    * Activating request interception enables {@link HTTPRequest.abort},
@@ -860,20 +842,14 @@ export abstract class Page extends EventEmitter<PageEvents> {
    *
    * @param value - Whether to enable request interception.
    */
-  async setRequestInterception(value: boolean): Promise<void>;
+  abstract setRequestInterception(value: boolean): Promise<void>;
-  async setRequestInterception(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Toggles ignoring of service worker for each request.
    *
    * @param bypass - Whether to bypass service worker and load from network.
    */
-  async setBypassServiceWorker(bypass: boolean): Promise<void>;
+  abstract setBypassServiceWorker(bypass: boolean): Promise<void>;
-  async setBypassServiceWorker(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * @param enabled - Whether to enable drag interception.
@@ -882,10 +858,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * drag APIs found on {@link ElementHandle} to drag (or just use the
    * {@link Page.mouse}).
    */
-  async setDragInterception(enabled: boolean): Promise<void>;
+  abstract setDragInterception(enabled: boolean): Promise<void>;
-  async setDragInterception(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Sets the network connection to offline.
@@ -894,10 +867,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    *
    * @param enabled - When `true`, enables offline mode for the page.
    */
-  setOfflineMode(enabled: boolean): Promise<void>;
+  abstract setOfflineMode(enabled: boolean): Promise<void>;
-  setOfflineMode(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * This does not affect WebSockets and WebRTC PeerConnections (see
@@ -926,12 +896,9 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * @param networkConditions - Passing `null` disables network condition
    * emulation.
    */
-  emulateNetworkConditions(
+  abstract emulateNetworkConditions(
     networkConditions: NetworkConditions | null
   ): Promise<void>;
-  emulateNetworkConditions(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * This setting will change the default maximum navigation time for the
@@ -1303,17 +1270,11 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * If no URLs are specified, this method returns cookies for the current page
    * URL. If URLs are specified, only cookies for those URLs are returned.
    */
-  async cookies(...urls: string[]): Promise<Protocol.Network.Cookie[]>;
+  abstract cookies(...urls: string[]): Promise<Protocol.Network.Cookie[]>;
-  async cookies(): Promise<Protocol.Network.Cookie[]> {
-    throw new Error('Not implemented');
-  }
 
-  async deleteCookie(
+  abstract deleteCookie(
     ...cookies: Protocol.Network.DeleteCookiesRequest[]
   ): Promise<void>;
-  async deleteCookie(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * @example
@@ -1322,10 +1283,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * await page.setCookie(cookieObject1, cookieObject2);
    * ```
    */
-  async setCookie(...cookies: Protocol.Network.CookieParam[]): Promise<void>;
+  abstract setCookie(...cookies: Protocol.Network.CookieParam[]): Promise<void>;
-  async setCookie(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Adds a `<script>` tag into the page with the desired URL or content.
@@ -1445,10 +1403,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * The method removes a previously added function via ${@link Page.exposeFunction}
    * called `name` from the page's `window` object.
    */
-  async removeExposedFunction(name: string): Promise<void>;
+  abstract removeExposedFunction(name: string): Promise<void>;
-  async removeExposedFunction(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Provide credentials for `HTTP authentication`.
@@ -1456,10 +1411,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * @remarks
    * To disable authentication, pass `null`.
    */
-  async authenticate(credentials: Credentials): Promise<void>;
+  abstract authenticate(credentials: Credentials): Promise<void>;
-  async authenticate(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * The extra HTTP headers will be sent with every request the page initiates.
@@ -1481,10 +1433,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * @param headers - An object containing additional HTTP headers to be sent
    * with every request. All header values must be strings.
    */
-  async setExtraHTTPHeaders(headers: Record<string, string>): Promise<void>;
+  abstract setExtraHTTPHeaders(headers: Record<string, string>): Promise<void>;
-  async setExtraHTTPHeaders(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * @param userAgent - Specific user agent to use in this page
@@ -1533,9 +1482,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * All timestamps are in monotonic time: monotonically increasing time
    * in seconds since an arbitrary point in the past.
    */
-  async metrics(): Promise<Metrics> {
+  abstract metrics(): Promise<Metrics>;
-    throw new Error('Not implemented');
-  }
 
   /**
    * The page's URL.
@@ -1838,10 +1785,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * - `networkidle2` : consider navigation to be finished when there are no
    *   more than 2 network connections for at least `500` ms.
    */
-  async goBack(options?: WaitForOptions): Promise<HTTPResponse | null>;
+  abstract goBack(options?: WaitForOptions): Promise<HTTPResponse | null>;
-  async goBack(): Promise<HTTPResponse | null> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * This method navigate to the next page in history.
@@ -1869,10 +1813,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * - `networkidle2` : consider navigation to be finished when there are no
    *   more than 2 network connections for at least `500` ms.
    */
-  async goForward(options?: WaitForOptions): Promise<HTTPResponse | null>;
+  abstract goForward(options?: WaitForOptions): Promise<HTTPResponse | null>;
-  async goForward(): Promise<HTTPResponse | null> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Brings page to front (activates tab).
@@ -1922,10 +1863,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * NOTE: changing this value won't affect scripts that have already been run.
    * It will take full effect on the next navigation.
    */
-  async setJavaScriptEnabled(enabled: boolean): Promise<void>;
+  abstract setJavaScriptEnabled(enabled: boolean): Promise<void>;
-  async setJavaScriptEnabled(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Toggles bypassing page's Content-Security-Policy.
@@ -1962,19 +1900,13 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * // → false
    * ```
    */
-  async emulateMediaType(type?: string): Promise<void>;
+  abstract emulateMediaType(type?: string): Promise<void>;
-  async emulateMediaType(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Enables CPU throttling to emulate slow CPUs.
    * @param factor - slowdown factor (1 is no throttle, 2 is 2x slowdown, etc).
    */
-  async emulateCPUThrottling(factor: number | null): Promise<void>;
+  abstract emulateCPUThrottling(factor: number | null): Promise<void>;
-  async emulateCPUThrottling(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * @param features - `<?Array<Object>>` Given an array of media feature
@@ -2037,10 +1969,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * // → false
    * ```
    */
-  async emulateMediaFeatures(features?: MediaFeature[]): Promise<void>;
+  abstract emulateMediaFeatures(features?: MediaFeature[]): Promise<void>;
-  async emulateMediaFeatures(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * @param timezoneId - Changes the timezone of the page. See
@@ -2048,10 +1977,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * for a list of supported timezone IDs. Passing
    * `null` disables timezone emulation.
    */
-  async emulateTimezone(timezoneId?: string): Promise<void>;
+  abstract emulateTimezone(timezoneId?: string): Promise<void>;
-  async emulateTimezone(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Emulates the idle state.
@@ -2072,13 +1998,10 @@ export abstract class Page extends EventEmitter<PageEvents> {
    *
    * @param overrides - Mock idle state. If not set, clears idle overrides
    */
-  async emulateIdleState(overrides?: {
+  abstract emulateIdleState(overrides?: {
     isUserActive: boolean;
     isScreenUnlocked: boolean;
   }): Promise<void>;
-  async emulateIdleState(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Simulates the given vision deficiency on the page.
@@ -2108,12 +2031,9 @@ export abstract class Page extends EventEmitter<PageEvents> {
    *
    * @param type - the type of deficiency to simulate, or `'none'` to reset.
    */
-  async emulateVisionDeficiency(
+  abstract emulateVisionDeficiency(
     type?: Protocol.Emulation.SetEmulatedVisionDeficiencyRequest['type']
   ): Promise<void>;
-  async emulateVisionDeficiency(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * `page.setViewport` will resize the page. A lot of websites don't expect
@@ -2734,10 +2654,7 @@ export abstract class Page extends EventEmitter<PageEvents> {
    *
    * @param options - options for generating the PDF.
    */
-  async createPDFStream(options?: PDFOptions): Promise<Readable>;
+  abstract createPDFStream(options?: PDFOptions): Promise<Readable>;
-  async createPDFStream(): Promise<Readable> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * {@inheritDoc Page.createPDFStream}
@@ -3139,12 +3056,9 @@ export abstract class Page extends EventEmitter<PageEvents> {
    * );
    * ```
    */
-  waitForDevicePrompt(
+  abstract waitForDevicePrompt(
     options?: WaitTimeoutOptions
   ): Promise<DeviceRequestPrompt>;
-  waitForDevicePrompt(): Promise<DeviceRequestPrompt> {
-    throw new Error('Not implemented');
-  }
 
   /** @internal */
   [disposeSymbol](): void {

packages/puppeteer-core/src/api/Target.ts

@@ -45,7 +45,7 @@ export enum TargetType {
  * worker.
  * @public
  */
-export class Target {
+export abstract class Target {
   /**
    * @internal
    */
@@ -66,16 +66,12 @@ export class Target {
     return null;
   }
 
-  url(): string {
+  abstract url(): string;
-    throw new Error('not implemented');
-  }
 
   /**
    * Creates a Chrome Devtools Protocol session attached to the target.
    */
-  createCDPSession(): Promise<CDPSession> {
+  abstract createCDPSession(): Promise<CDPSession>;
-    throw new Error('not implemented');
-  }
 
   /**
    * Identifies what kind of target this is.
@@ -84,28 +80,20 @@ export class Target {
    *
    * See {@link https://developer.chrome.com/extensions/background_pages | docs} for more info about background pages.
    */
-  type(): TargetType {
+  abstract type(): TargetType;
-    throw new Error('not implemented');
-  }
 
   /**
    * Get the browser the target belongs to.
    */
-  browser(): Browser {
+  abstract browser(): Browser;
-    throw new Error('not implemented');
-  }
 
   /**
    * Get the browser context the target belongs to.
    */
-  browserContext(): BrowserContext {
+  abstract browserContext(): BrowserContext;
-    throw new Error('not implemented');
-  }
 
   /**
    * Get the target that opened this target. Top-level targets return `null`.
    */
-  opener(): Target | undefined {
+  abstract opener(): Target | undefined;
-    throw new Error('not implemented');
-  }
 }

packages/puppeteer-core/src/bidi/Browser.ts

@@ -27,6 +27,7 @@ import {
 import {BrowserContextEvent} from '../api/BrowserContext.js';
 import type {Page} from '../api/Page.js';
 import type {Target} from '../api/Target.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 import type {Handler} from '../common/EventEmitter.js';
 import {debugError} from '../common/util.js';
 import type {Viewport} from '../common/Viewport.js';
@@ -165,6 +166,10 @@ export class BidiBrowser extends Browser {
     }
   }
 
+  override userAgent(): Promise<string> {
+    throw new UnsupportedOperation();
+  }
+
   #onContextDomLoaded(event: Bidi.BrowsingContext.Info) {
     const target = this.#targets.get(event.context);
     if (target) {
@@ -315,4 +320,8 @@ export class BidiBrowser extends Browser {
   override target(): Target {
     return this.#browserTarget;
   }
+
+  override disconnect(): void {
+    this;
+  }
 }

packages/puppeteer-core/src/bidi/BrowserContext.ts

@@ -20,6 +20,7 @@ import type {WaitForTargetOptions} from '../api/Browser.js';
 import {BrowserContext} from '../api/BrowserContext.js';
 import type {Page} from '../api/Page.js';
 import type {Target} from '../api/Target.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 import type {Viewport} from '../common/Viewport.js';
 
 import type {BidiBrowser} from './Browser.js';
@@ -124,4 +125,12 @@ export class BidiBrowserContext extends BrowserContext {
   override isIncognito(): boolean {
     return !this.#isDefault;
   }
+
+  override overridePermissions(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override clearPermissionOverrides(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
 }

packages/puppeteer-core/src/bidi/BrowsingContext.ts

@@ -3,7 +3,7 @@ import type ProtocolMapping from 'devtools-protocol/types/protocol-mapping.js';
 
 import {CDPSession} from '../api/CDPSession.js';
 import type {Connection as CdpConnection} from '../cdp/Connection.js';
-import {TargetCloseError} from '../common/Errors.js';
+import {TargetCloseError, UnsupportedOperation} from '../common/Errors.js';
 import type {EventType} from '../common/EventEmitter.js';
 import {debugError} from '../common/util.js';
 import {Deferred} from '../util/Deferred.js';
@@ -57,7 +57,7 @@ export class CdpSessionWrapper extends CDPSession {
     ...paramArgs: ProtocolMapping.Commands[T]['paramsType']
   ): Promise<ProtocolMapping.Commands[T]['returnType']> {
     if (!this.#context.supportsCdp()) {
-      throw new Error(
+      throw new UnsupportedOperation(
         'CDP support is required for this feature. The current browser does not support CDP.'
       );
     }

packages/puppeteer-core/src/bidi/ElementHandle.ts

@@ -17,6 +17,7 @@
 import type * as Bidi from 'chromium-bidi/lib/cjs/protocol/protocol.js';
 
 import {type AutofillData, ElementHandle} from '../api/ElementHandle.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 import {throwIfDisposed} from '../util/decorators.js';
 
 import type {BidiFrame} from './Frame.js';
@@ -89,4 +90,8 @@ export class BidiElementHandle<
     }
     return null;
   }
+
+  override uploadFile(this: ElementHandle<HTMLInputElement>): Promise<void> {
+    throw new UnsupportedOperation();
+  }
 }

packages/puppeteer-core/src/bidi/Frame.ts

@@ -34,9 +34,11 @@ import {
   type WaitForOptions,
   throwIfDetached,
 } from '../api/Frame.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 import type {TimeoutSettings} from '../common/TimeoutSettings.js';
 import type {Awaitable} from '../common/types.js';
 import {UTILITY_WORLD_NAME, setPageContent, timeout} from '../common/util.js';
+import type {DeviceRequestPrompt} from '../puppeteer-core.js';
 import {Deferred} from '../util/Deferred.js';
 import {disposeSymbol} from '../util/disposable.js';
 
@@ -109,6 +111,10 @@ export class BidiFrame extends Frame {
     return this.#page;
   }
 
+  override isOOPFrame(): boolean {
+    throw new UnsupportedOperation();
+  }
+
   override url(): string {
     return this.#context.url;
   }
@@ -227,6 +233,10 @@ export class BidiFrame extends Frame {
     return this.#page.getNavigationResponse(response?.result.navigation);
   }
 
+  override waitForDevicePrompt(): Promise<DeviceRequestPrompt> {
+    throw new UnsupportedOperation();
+  }
+
   override get detached(): boolean {
     return this.#disposed;
   }
@@ -243,7 +253,7 @@ export class BidiFrame extends Frame {
   }
 
   #exposedFunctions = new Map<string, ExposeableFunction<never[], unknown>>();
-  override async exposeFunction<Args extends unknown[], Ret>(
+  async exposeFunction<Args extends unknown[], Ret>(
     name: string,
     apply: (...args: Args) => Awaitable<Ret>
   ): Promise<void> {

packages/puppeteer-core/src/bidi/HTTPRequest.ts

@@ -16,6 +16,7 @@
 import type * as Bidi from 'chromium-bidi/lib/cjs/protocol/protocol.js';
 import type {Protocol} from 'devtools-protocol';
 
+import type {CDPSession} from '../api/CDPSession.js';
 import type {Frame} from '../api/Frame.js';
 import type {
   ContinueRequestOverrides,
@@ -23,7 +24,7 @@ import type {
   ResponseForRequest,
 } from '../api/HTTPRequest.js';
 import {HTTPRequest, type ResourceType} from '../api/HTTPRequest.js';
-import type {CDPSession} from '../puppeteer-core.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 
 import type {BidiHTTPResponse} from './HTTPResponse.js';
 
@@ -72,7 +73,7 @@ export class BidiHTTPRequest extends HTTPRequest {
   }
 
   override get client(): CDPSession {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override url(): string {
@@ -123,47 +124,47 @@ export class BidiHTTPRequest extends HTTPRequest {
   }
 
   override continueRequestOverrides(): ContinueRequestOverrides {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override async continue(
     _overrides: ContinueRequestOverrides = {}
   ): Promise<void> {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override responseForRequest(): Partial<ResponseForRequest> {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override abortErrorReason(): Protocol.Network.ErrorReason | null {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override interceptResolutionState(): InterceptResolutionState {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override isInterceptResolutionHandled(): boolean {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override async finalizeInterceptions(): Promise<void> {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override abort(): Promise<void> {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override respond(
     _response: Partial<ResponseForRequest>,
     _priority?: number
   ): Promise<void> {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override failure(): {errorText: string} | null {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 }

packages/puppeteer-core/src/bidi/HTTPResponse.ts

@@ -21,6 +21,7 @@ import {
   HTTPResponse as HTTPResponse,
   type RemoteAddress,
 } from '../api/HTTPResponse.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 import type {SecurityDetails} from '../common/SecurityDetails.js';
 
 import type {BidiHTTPRequest} from './HTTPRequest.js';
@@ -108,10 +109,10 @@ export class BidiHTTPResponse extends HTTPResponse {
   }
 
   override securityDetails(): SecurityDetails | null {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
   override buffer(): Promise<Buffer> {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 }

packages/puppeteer-core/src/bidi/Input.ts

@@ -15,6 +15,7 @@
  */
 
 import * as Bidi from 'chromium-bidi/lib/cjs/protocol/protocol.js';
+import type Protocol from 'devtools-protocol';
 
 import type {Point} from '../api/ElementHandle.js';
 import {
@@ -30,6 +31,7 @@ import {
   type MouseOptions,
   type MouseWheelOptions,
 } from '../api/Input.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 import type {KeyInput} from '../common/USKeyboardLayout.js';
 
 import type {BrowsingContext} from './BrowsingContext.js';
@@ -627,6 +629,26 @@ export class BidiMouse extends Mouse {
       ],
     });
   }
+
+  override drag(): Promise<Protocol.Input.DragData> {
+    throw new UnsupportedOperation();
+  }
+
+  override dragOver(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override dragEnter(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override drop(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override dragAndDrop(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
 }
 
 /**

packages/puppeteer-core/src/bidi/JSHandle.ts

@@ -18,6 +18,7 @@ import type * as Bidi from 'chromium-bidi/lib/cjs/protocol/protocol.js';
 
 import type {ElementHandle} from '../api/ElementHandle.js';
 import {JSHandle} from '../api/JSHandle.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 
 import {BidiDeserializer} from './Deserializer.js';
 import type {BidiRealm} from './Realm.js';
@@ -105,6 +106,6 @@ export class BidiJSHandle<T = unknown> extends JSHandle<T> {
   }
 
   override remoteObject(): never {
-    throw new Error('Not available in WebDriver BiDi');
+    throw new UnsupportedOperation('Not available in WebDriver BiDi');
   }
 }

packages/puppeteer-core/src/bidi/Page.ts

@@ -30,6 +30,7 @@ import {
 } from '../../third_party/rxjs/rxjs.js';
 import type {CDPSession} from '../api/CDPSession.js';
 import type {WaitForOptions} from '../api/Frame.js';
+import type {Metrics} from '../api/Page.js';
 import {
   Page,
   PageEvent,
@@ -38,17 +39,20 @@ import {
   type NewDocumentScriptEvaluation,
   type ScreenshotOptions,
 } from '../api/Page.js';
+import type {Target} from '../api/Target.js';
 import {Accessibility} from '../cdp/Accessibility.js';
 import {Coverage} from '../cdp/Coverage.js';
 import {EmulationManager as CdpEmulationManager} from '../cdp/EmulationManager.js';
 import {FrameTree} from '../cdp/FrameTree.js';
 import {Tracing} from '../cdp/Tracing.js';
+import type {WebWorker} from '../cdp/WebWorker.js';
 import {
   ConsoleMessage,
   type ConsoleMessageLocation,
 } from '../common/ConsoleMessage.js';
-import {TargetCloseError} from '../common/Errors.js';
+import {TargetCloseError, UnsupportedOperation} from '../common/Errors.js';
 import type {Handler} from '../common/EventEmitter.js';
+import type {FileChooser} from '../common/FileChooser.js';
 import {NetworkManagerEvent} from '../common/NetworkManagerEvents.js';
 import type {PDFOptions} from '../common/PDFOptions.js';
 import type {Awaitable} from '../common/types.js';
@@ -61,6 +65,7 @@ import {
   waitForHTTP,
 } from '../common/util.js';
 import type {Viewport} from '../common/Viewport.js';
+import type {DeviceRequestPrompt, HTTPResponse} from '../puppeteer-core.js';
 import {assert} from '../util/assert.js';
 import {Deferred} from '../util/Deferred.js';
 import {disposeSymbol} from '../util/disposable.js';
@@ -649,29 +654,34 @@ export class BidiPage extends Page {
     const {clip, type, captureBeyondViewport, allowViewportExpansion, quality} =
       options;
     if (captureBeyondViewport && !allowViewportExpansion) {
-      throw new Error(
+      throw new UnsupportedOperation(
         `BiDi does not support 'captureBeyondViewport'. Use 'allowViewportExpansion'.`
       );
     }
     if (options.omitBackground !== undefined && options.omitBackground) {
-      throw new Error(`BiDi does not support 'omitBackground'.`);
+      throw new UnsupportedOperation(`BiDi does not support 'omitBackground'.`);
     }
     if (options.optimizeForSpeed !== undefined && options.optimizeForSpeed) {
-      throw new Error(`BiDi does not support 'optimizeForSpeed'.`);
+      throw new UnsupportedOperation(
+        `BiDi does not support 'optimizeForSpeed'.`
+      );
     }
     if (options.fromSurface !== undefined && !options.fromSurface) {
-      throw new Error(`BiDi does not support 'fromSurface'.`);
+      throw new UnsupportedOperation(`BiDi does not support 'fromSurface'.`);
     }
     if (clip !== undefined && clip.scale !== undefined && clip.scale !== 1) {
-      throw new Error(`BiDi does not support 'scale' in 'clip'.`);
+      throw new UnsupportedOperation(
+        `BiDi does not support 'scale' in 'clip'.`
+      );
     }
+
     const {
       result: {data},
     } = await this.#connection.send('browsingContext.captureScreenshot', {
       context: this.mainFrame()._id,
       format: {
         type: `image/${type}`,
-        ...(quality === undefined ? {} : {quality: quality / 100}),
+        quality: quality ? quality / 100 : undefined,
       },
       clip: clip && {
         type: 'box',
@@ -817,6 +827,83 @@ export class BidiPage extends Page {
       cacheDisabled: !enabled,
     });
   }
+
+  override isServiceWorkerBypassed(): boolean {
+    throw new UnsupportedOperation();
+  }
+
+  override target(): Target {
+    throw new UnsupportedOperation();
+  }
+
+  override waitForFileChooser(): Promise<FileChooser> {
+    throw new UnsupportedOperation();
+  }
+
+  override workers(): WebWorker[] {
+    throw new UnsupportedOperation();
+  }
+
+  override setRequestInterception(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override setDragInterception(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override setBypassServiceWorker(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override setOfflineMode(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override emulateNetworkConditions(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override cookies(): Promise<Protocol.Network.Cookie[]> {
+    throw new UnsupportedOperation();
+  }
+
+  override setCookie(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override deleteCookie(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override removeExposedFunction(): Promise<void> {
+    // TODO: Quick win?
+    throw new UnsupportedOperation();
+  }
+
+  override authenticate(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override setExtraHTTPHeaders(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
+
+  override metrics(): Promise<Metrics> {
+    throw new UnsupportedOperation();
+  }
+
+  override goBack(): Promise<HTTPResponse | null> {
+    throw new UnsupportedOperation();
+  }
+
+  override goForward(): Promise<HTTPResponse | null> {
+    throw new UnsupportedOperation();
+  }
+
+  override waitForDevicePrompt(): Promise<DeviceRequestPrompt> {
+    throw new UnsupportedOperation();
+  }
 }
 
 function isConsoleLogEntry(

packages/puppeteer-core/src/bidi/Target.ts

@@ -16,6 +16,7 @@
 
 import type {CDPSession} from '../api/CDPSession.js';
 import {Target, TargetType} from '../api/Target.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 
 import type {BidiBrowser} from './Browser.js';
 import type {BidiBrowserContext} from './BrowserContext.js';
@@ -33,6 +34,10 @@ export class BidiTarget extends Target {
     this._browserContext = browserContext;
   }
 
+  _setBrowserContext(browserContext: BidiBrowserContext): void {
+    this._browserContext = browserContext;
+  }
+
   override async worker(): Promise<null> {
     return null;
   }
@@ -46,11 +51,19 @@ export class BidiTarget extends Target {
   }
 
   override opener(): Target | undefined {
-    throw new Error('Not implemented');
+    throw new UnsupportedOperation();
   }
 
-  _setBrowserContext(browserContext: BidiBrowserContext): void {
+  override url(): string {
-    this._browserContext = browserContext;
+    throw new UnsupportedOperation();
+  }
+
+  override createCDPSession(): Promise<CDPSession> {
+    throw new UnsupportedOperation();
+  }
+
+  override type(): TargetType {
+    throw new UnsupportedOperation();
   }
 }
 
@@ -117,7 +130,7 @@ export class BiDiPageTarget extends BiDiBrowsingContextTarget {
     this.#page = new BidiPage(browsingContext, browserContext);
   }
 
-  override async page(): Promise<BidiPage | null> {
+  override async page(): Promise<BidiPage> {
     return this.#page;
   }
 

packages/puppeteer-core/src/bidi/lifecycle.ts

@@ -24,6 +24,9 @@ import {catchError} from '../../third_party/rxjs/rxjs.js';
 import type {PuppeteerLifeCycleEvent} from '../cdp/LifecycleWatcher.js';
 import {ProtocolError, TimeoutError} from '../common/Errors.js';
 
+/**
+ * @internal
+ */
 export type BiDiNetworkIdle = Extract<
   PuppeteerLifeCycleEvent,
   'networkidle0' | 'networkidle2'
@@ -94,6 +97,9 @@ export const lifeCycleToSubscribedEvent = new Map<
   ['domcontentloaded', 'browsingContext.domContentLoaded'],
 ]);
 
+/**
+ * @internal
+ */
 export function getBiDiLifecycleEvent(
   event: PuppeteerLifeCycleEvent | PuppeteerLifeCycleEvent[]
 ): [
@@ -105,6 +111,9 @@ export function getBiDiLifecycleEvent(
   return [bidiEvent, lifeCycles[1]];
 }
 
+/**
+ * @internal
+ */
 export function rewriteNavigationError<T, R extends ObservableInput<T>>(
   message: string,
   ms: number

packages/puppeteer-core/src/cdp/Browser.ts

@@ -143,7 +143,7 @@ export class CdpBrowser extends BrowserBase {
     this.emit(BrowserEvent.Disconnected, undefined);
   };
 
-  override async _attach(): Promise<void> {
+  async _attach(): Promise<void> {
     this.#connection.on(CDPSessionEvent.Disconnected, this.#emitDisconnected);
     this.#targetManager.on(
       TargetManagerEvent.TargetAvailable,
@@ -164,7 +164,7 @@ export class CdpBrowser extends BrowserBase {
     await this.#targetManager.initialize();
   }
 
-  override _detach(): void {
+  _detach(): void {
     this.#connection.off(CDPSessionEvent.Disconnected, this.#emitDisconnected);
     this.#targetManager.off(
       TargetManagerEvent.TargetAvailable,
@@ -204,7 +204,7 @@ export class CdpBrowser extends BrowserBase {
       });
   }
 
-  override _getIsPageTargetCallback(): IsPageTargetCallback | undefined {
+  _getIsPageTargetCallback(): IsPageTargetCallback | undefined {
     return this.#isPageTargetCallback;
   }
 
@@ -237,7 +237,7 @@ export class CdpBrowser extends BrowserBase {
     return this.#defaultContext;
   }
 
-  override async _disposeContext(contextId?: string): Promise<void> {
+  async _disposeContext(contextId?: string): Promise<void> {
     if (!contextId) {
       return;
     }
@@ -349,7 +349,7 @@ export class CdpBrowser extends BrowserBase {
     return await this.#defaultContext.newPage();
   }
 
-  override async _createPageInContext(contextId?: string): Promise<Page> {
+  async _createPageInContext(contextId?: string): Promise<Page> {
     const {targetId} = await this.#connection.send('Target.createTarget', {
       url: 'about:blank',
       browserContextId: contextId || undefined,

packages/puppeteer-core/src/cdp/Frame.ts

@@ -20,6 +20,7 @@ import type {CDPSession} from '../api/CDPSession.js';
 import {Frame, FrameEvent, throwIfDetached} from '../api/Frame.js';
 import type {HTTPResponse} from '../api/HTTPResponse.js';
 import type {WaitTimeoutOptions} from '../api/Page.js';
+import {UnsupportedOperation} from '../common/Errors.js';
 import {setPageContent} from '../common/util.js';
 import {Deferred} from '../util/Deferred.js';
 import {disposeSymbol} from '../util/disposable.js';
@@ -347,4 +348,8 @@ export class CdpFrame extends Frame {
     this.worlds[MAIN_WORLD][disposeSymbol]();
     this.worlds[PUPPETEER_WORLD][disposeSymbol]();
   }
+
+  exposeFunction(): Promise<void> {
+    throw new UnsupportedOperation();
+  }
 }

packages/puppeteer-core/src/common/Errors.ts

@@ -80,6 +80,14 @@ export class ProtocolError extends CustomError {
   }
 }
 
+/**
+ * Puppeteer will throw this error if a method is not
+ * supported by the currently used protocol
+ *
+ * @public
+ */
+export class UnsupportedOperation extends CustomError {}
+
 /**
  * @internal
  */