diff --git a/docs/api/puppeteer.httprequest.abort.md b/docs/api/puppeteer.httprequest.abort.md
index bf460dae6da..f555f1240e6 100644
--- a/docs/api/puppeteer.httprequest.abort.md
+++ b/docs/api/puppeteer.httprequest.abort.md
@@ -10,7 +10,7 @@ Aborts a request.
 
 ```typescript
 class HTTPRequest {
-  abort(errorCode?: ErrorCode, priority?: number): Promise<void>;
+  abstract abort(errorCode?: ErrorCode, priority?: number): Promise<void>;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.aborterrorreason.md b/docs/api/puppeteer.httprequest.aborterrorreason.md
index ed4c782d923..2abe6d25f70 100644
--- a/docs/api/puppeteer.httprequest.aborterrorreason.md
+++ b/docs/api/puppeteer.httprequest.aborterrorreason.md
@@ -10,7 +10,7 @@ The most recent reason for aborting the request
 
 ```typescript
 class HTTPRequest {
-  abortErrorReason(): Protocol.Network.ErrorReason | null;
+  abstract abortErrorReason(): Protocol.Network.ErrorReason | null;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.continue.md b/docs/api/puppeteer.httprequest.continue.md
index 50732351830..df860f76736 100644
--- a/docs/api/puppeteer.httprequest.continue.md
+++ b/docs/api/puppeteer.httprequest.continue.md
@@ -10,7 +10,7 @@ Continues request with optional request overrides.
 
 ```typescript
 class HTTPRequest {
-  continue(
+  abstract continue(
     overrides?: ContinueRequestOverrides,
     priority?: number
   ): Promise<void>;
diff --git a/docs/api/puppeteer.httprequest.continuerequestoverrides.md b/docs/api/puppeteer.httprequest.continuerequestoverrides.md
index 832d430deeb..b04b26c3916 100644
--- a/docs/api/puppeteer.httprequest.continuerequestoverrides.md
+++ b/docs/api/puppeteer.httprequest.continuerequestoverrides.md
@@ -10,7 +10,7 @@ The `ContinueRequestOverrides` that will be used if the interception is allowed
 
 ```typescript
 class HTTPRequest {
-  continueRequestOverrides(): ContinueRequestOverrides;
+  abstract continueRequestOverrides(): ContinueRequestOverrides;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.enqueueinterceptaction.md b/docs/api/puppeteer.httprequest.enqueueinterceptaction.md
index 092dfd1f418..82b2a566f9a 100644
--- a/docs/api/puppeteer.httprequest.enqueueinterceptaction.md
+++ b/docs/api/puppeteer.httprequest.enqueueinterceptaction.md
@@ -10,7 +10,7 @@ Adds an async request handler to the processing queue. Deferred handlers are not
 
 ```typescript
 class HTTPRequest {
-  enqueueInterceptAction(
+  abstract enqueueInterceptAction(
     pendingHandler: () => void | PromiseLike<unknown>
   ): void;
 }
diff --git a/docs/api/puppeteer.httprequest.failure.md b/docs/api/puppeteer.httprequest.failure.md
index 8d88997500b..973f79a7788 100644
--- a/docs/api/puppeteer.httprequest.failure.md
+++ b/docs/api/puppeteer.httprequest.failure.md
@@ -10,7 +10,7 @@ Access information about the request's failure.
 
 ```typescript
 class HTTPRequest {
-  failure(): {
+  abstract failure(): {
     errorText: string;
   } | null;
 }
diff --git a/docs/api/puppeteer.httprequest.finalizeinterceptions.md b/docs/api/puppeteer.httprequest.finalizeinterceptions.md
index 3245e3ce3ce..661e16310e9 100644
--- a/docs/api/puppeteer.httprequest.finalizeinterceptions.md
+++ b/docs/api/puppeteer.httprequest.finalizeinterceptions.md
@@ -10,7 +10,7 @@ Awaits pending interception handlers and then decides how to fulfill the request
 
 ```typescript
 class HTTPRequest {
-  finalizeInterceptions(): Promise<void>;
+  abstract finalizeInterceptions(): Promise<void>;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.frame.md b/docs/api/puppeteer.httprequest.frame.md
index f32e9cfbb01..8e483c1696a 100644
--- a/docs/api/puppeteer.httprequest.frame.md
+++ b/docs/api/puppeteer.httprequest.frame.md
@@ -10,7 +10,7 @@ The frame that initiated the request, or null if navigating to error pages.
 
 ```typescript
 class HTTPRequest {
-  frame(): Frame | null;
+  abstract frame(): Frame | null;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.headers.md b/docs/api/puppeteer.httprequest.headers.md
index 6c0a7496787..3b8e22a6ced 100644
--- a/docs/api/puppeteer.httprequest.headers.md
+++ b/docs/api/puppeteer.httprequest.headers.md
@@ -10,7 +10,7 @@ An object with HTTP headers associated with the request. All header names are lo
 
 ```typescript
 class HTTPRequest {
-  headers(): Record<string, string>;
+  abstract headers(): Record<string, string>;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.initiator.md b/docs/api/puppeteer.httprequest.initiator.md
index cd98a3fa67a..3462e19ab69 100644
--- a/docs/api/puppeteer.httprequest.initiator.md
+++ b/docs/api/puppeteer.httprequest.initiator.md
@@ -10,7 +10,7 @@ The initiator of the request.
 
 ```typescript
 class HTTPRequest {
-  initiator(): Protocol.Network.Initiator | undefined;
+  abstract initiator(): Protocol.Network.Initiator | undefined;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.interceptresolutionstate.md b/docs/api/puppeteer.httprequest.interceptresolutionstate.md
index 2adca7ac17b..524104e5e6c 100644
--- a/docs/api/puppeteer.httprequest.interceptresolutionstate.md
+++ b/docs/api/puppeteer.httprequest.interceptresolutionstate.md
@@ -14,7 +14,7 @@ InterceptResolutionAction is one of: `abort`, `respond`, `continue`, `disabled`,
 
 ```typescript
 class HTTPRequest {
-  interceptResolutionState(): InterceptResolutionState;
+  abstract interceptResolutionState(): InterceptResolutionState;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.isinterceptresolutionhandled.md b/docs/api/puppeteer.httprequest.isinterceptresolutionhandled.md
index 2807a9cfb16..31403fa967f 100644
--- a/docs/api/puppeteer.httprequest.isinterceptresolutionhandled.md
+++ b/docs/api/puppeteer.httprequest.isinterceptresolutionhandled.md
@@ -10,7 +10,7 @@ Is `true` if the intercept resolution has already been handled, `false` otherwis
 
 ```typescript
 class HTTPRequest {
-  isInterceptResolutionHandled(): boolean;
+  abstract isInterceptResolutionHandled(): boolean;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.isnavigationrequest.md b/docs/api/puppeteer.httprequest.isnavigationrequest.md
index cfb120e2bc5..381913f9408 100644
--- a/docs/api/puppeteer.httprequest.isnavigationrequest.md
+++ b/docs/api/puppeteer.httprequest.isnavigationrequest.md
@@ -10,7 +10,7 @@ True if the request is the driver of the current frame's navigation.
 
 ```typescript
 class HTTPRequest {
-  isNavigationRequest(): boolean;
+  abstract isNavigationRequest(): boolean;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.md b/docs/api/puppeteer.httprequest.md
index 500d4c10e4e..6e9192b9c30 100644
--- a/docs/api/puppeteer.httprequest.md
+++ b/docs/api/puppeteer.httprequest.md
@@ -9,7 +9,7 @@ Represents an HTTP request sent by a page.
 #### Signature:
 
 ```typescript
-export declare class HTTPRequest
+export declare abstract class HTTPRequest
 ```
 
 ## Remarks
diff --git a/docs/api/puppeteer.httprequest.method.md b/docs/api/puppeteer.httprequest.method.md
index ce261ac28ff..077211da5f3 100644
--- a/docs/api/puppeteer.httprequest.method.md
+++ b/docs/api/puppeteer.httprequest.method.md
@@ -10,7 +10,7 @@ The method used (`GET`, `POST`, etc.)
 
 ```typescript
 class HTTPRequest {
-  method(): string;
+  abstract method(): string;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.postdata.md b/docs/api/puppeteer.httprequest.postdata.md
index 7b7e1b328d5..fda9bd92f07 100644
--- a/docs/api/puppeteer.httprequest.postdata.md
+++ b/docs/api/puppeteer.httprequest.postdata.md
@@ -10,7 +10,7 @@ The request's post body, if any.
 
 ```typescript
 class HTTPRequest {
-  postData(): string | undefined;
+  abstract postData(): string | undefined;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.redirectchain.md b/docs/api/puppeteer.httprequest.redirectchain.md
index be898d76376..1264d537347 100644
--- a/docs/api/puppeteer.httprequest.redirectchain.md
+++ b/docs/api/puppeteer.httprequest.redirectchain.md
@@ -10,7 +10,7 @@ A `redirectChain` is a chain of requests initiated to fetch a resource.
 
 ```typescript
 class HTTPRequest {
-  redirectChain(): HTTPRequest[];
+  abstract redirectChain(): HTTPRequest[];
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.resourcetype.md b/docs/api/puppeteer.httprequest.resourcetype.md
index dab901feb62..e39001a1d08 100644
--- a/docs/api/puppeteer.httprequest.resourcetype.md
+++ b/docs/api/puppeteer.httprequest.resourcetype.md
@@ -10,7 +10,7 @@ Contains the request's resource type as it was perceived by the rendering engine
 
 ```typescript
 class HTTPRequest {
-  resourceType(): ResourceType;
+  abstract resourceType(): ResourceType;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.respond.md b/docs/api/puppeteer.httprequest.respond.md
index fa9332ca958..d910d2a057f 100644
--- a/docs/api/puppeteer.httprequest.respond.md
+++ b/docs/api/puppeteer.httprequest.respond.md
@@ -10,7 +10,7 @@ Fulfills a request with the given response.
 
 ```typescript
 class HTTPRequest {
-  respond(
+  abstract respond(
     response: Partial<ResponseForRequest>,
     priority?: number
   ): Promise<void>;
diff --git a/docs/api/puppeteer.httprequest.response.md b/docs/api/puppeteer.httprequest.response.md
index 57a193bb74e..d4bcf659447 100644
--- a/docs/api/puppeteer.httprequest.response.md
+++ b/docs/api/puppeteer.httprequest.response.md
@@ -10,7 +10,7 @@ A matching `HTTPResponse` object, or null if the response has not been received
 
 ```typescript
 class HTTPRequest {
-  response(): HTTPResponse | null;
+  abstract response(): HTTPResponse | null;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.responseforrequest.md b/docs/api/puppeteer.httprequest.responseforrequest.md
index 168b83131b1..581b6c24534 100644
--- a/docs/api/puppeteer.httprequest.responseforrequest.md
+++ b/docs/api/puppeteer.httprequest.responseforrequest.md
@@ -10,7 +10,7 @@ The `ResponseForRequest` that gets used if the interception is allowed to respon
 
 ```typescript
 class HTTPRequest {
-  responseForRequest(): Partial<ResponseForRequest> | null;
+  abstract responseForRequest(): Partial<ResponseForRequest> | null;
 }
 ```
 
diff --git a/docs/api/puppeteer.httprequest.url.md b/docs/api/puppeteer.httprequest.url.md
index ec8e667fa5f..22889e7a06f 100644
--- a/docs/api/puppeteer.httprequest.url.md
+++ b/docs/api/puppeteer.httprequest.url.md
@@ -10,7 +10,7 @@ The URL of the request
 
 ```typescript
 class HTTPRequest {
-  url(): string;
+  abstract url(): string;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.buffer.md b/docs/api/puppeteer.httpresponse.buffer.md
index 75c64d4ac67..72c646b62a9 100644
--- a/docs/api/puppeteer.httpresponse.buffer.md
+++ b/docs/api/puppeteer.httpresponse.buffer.md
@@ -10,7 +10,7 @@ Promise which resolves to a buffer with response body.
 
 ```typescript
 class HTTPResponse {
-  buffer(): Promise<Buffer>;
+  abstract buffer(): Promise<Buffer>;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.frame.md b/docs/api/puppeteer.httpresponse.frame.md
index 781736cd29b..b37a4994cb4 100644
--- a/docs/api/puppeteer.httpresponse.frame.md
+++ b/docs/api/puppeteer.httpresponse.frame.md
@@ -10,7 +10,7 @@ A [Frame](./puppeteer.frame.md) that initiated this response, or `null` if navig
 
 ```typescript
 class HTTPResponse {
-  frame(): Frame | null;
+  abstract frame(): Frame | null;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.fromcache.md b/docs/api/puppeteer.httpresponse.fromcache.md
index ec38a9ebb44..fd4531d7db8 100644
--- a/docs/api/puppeteer.httpresponse.fromcache.md
+++ b/docs/api/puppeteer.httpresponse.fromcache.md
@@ -10,7 +10,7 @@ True if the response was served from either the browser's disk cache or memory c
 
 ```typescript
 class HTTPResponse {
-  fromCache(): boolean;
+  abstract fromCache(): boolean;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.fromserviceworker.md b/docs/api/puppeteer.httpresponse.fromserviceworker.md
index 7de43d3c17a..67582392b4b 100644
--- a/docs/api/puppeteer.httpresponse.fromserviceworker.md
+++ b/docs/api/puppeteer.httpresponse.fromserviceworker.md
@@ -10,7 +10,7 @@ True if the response was served by a service worker.
 
 ```typescript
 class HTTPResponse {
-  fromServiceWorker(): boolean;
+  abstract fromServiceWorker(): boolean;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.headers.md b/docs/api/puppeteer.httpresponse.headers.md
index 05790794ffd..85b24c89b6d 100644
--- a/docs/api/puppeteer.httpresponse.headers.md
+++ b/docs/api/puppeteer.httpresponse.headers.md
@@ -10,7 +10,7 @@ An object with HTTP headers associated with the response. All header names are l
 
 ```typescript
 class HTTPResponse {
-  headers(): Record<string, string>;
+  abstract headers(): Record<string, string>;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.md b/docs/api/puppeteer.httpresponse.md
index 411b48c7cff..84fe3d78500 100644
--- a/docs/api/puppeteer.httpresponse.md
+++ b/docs/api/puppeteer.httpresponse.md
@@ -9,7 +9,7 @@ The HTTPResponse class represents responses which are received by the [Page](./p
 #### Signature:
 
 ```typescript
-export declare class HTTPResponse
+export declare abstract class HTTPResponse
 ```
 
 ## Remarks
diff --git a/docs/api/puppeteer.httpresponse.remoteaddress.md b/docs/api/puppeteer.httpresponse.remoteaddress.md
index fb34ae9eb09..5656a550c1a 100644
--- a/docs/api/puppeteer.httpresponse.remoteaddress.md
+++ b/docs/api/puppeteer.httpresponse.remoteaddress.md
@@ -10,7 +10,7 @@ The IP address and port number used to connect to the remote server.
 
 ```typescript
 class HTTPResponse {
-  remoteAddress(): RemoteAddress;
+  abstract remoteAddress(): RemoteAddress;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.request.md b/docs/api/puppeteer.httpresponse.request.md
index aeb88988dbc..530adc7008d 100644
--- a/docs/api/puppeteer.httpresponse.request.md
+++ b/docs/api/puppeteer.httpresponse.request.md
@@ -10,7 +10,7 @@ A matching [HTTPRequest](./puppeteer.httprequest.md) object.
 
 ```typescript
 class HTTPResponse {
-  request(): HTTPRequest;
+  abstract request(): HTTPRequest;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.securitydetails.md b/docs/api/puppeteer.httpresponse.securitydetails.md
index d8f086d9fa8..d715814d6c8 100644
--- a/docs/api/puppeteer.httpresponse.securitydetails.md
+++ b/docs/api/puppeteer.httpresponse.securitydetails.md
@@ -10,7 +10,7 @@ sidebar_label: HTTPResponse.securityDetails
 
 ```typescript
 class HTTPResponse {
-  securityDetails(): SecurityDetails | null;
+  abstract securityDetails(): SecurityDetails | null;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.status.md b/docs/api/puppeteer.httpresponse.status.md
index fcb0ab1e1b6..952a27b67e0 100644
--- a/docs/api/puppeteer.httpresponse.status.md
+++ b/docs/api/puppeteer.httpresponse.status.md
@@ -10,7 +10,7 @@ The status code of the response (e.g., 200 for a success).
 
 ```typescript
 class HTTPResponse {
-  status(): number;
+  abstract status(): number;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.statustext.md b/docs/api/puppeteer.httpresponse.statustext.md
index 30449231460..fd833ab7950 100644
--- a/docs/api/puppeteer.httpresponse.statustext.md
+++ b/docs/api/puppeteer.httpresponse.statustext.md
@@ -10,7 +10,7 @@ The status text of the response (e.g. usually an "OK" for a success).
 
 ```typescript
 class HTTPResponse {
-  statusText(): string;
+  abstract statusText(): string;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.timing.md b/docs/api/puppeteer.httpresponse.timing.md
index 273d14c395b..64c00ea1671 100644
--- a/docs/api/puppeteer.httpresponse.timing.md
+++ b/docs/api/puppeteer.httpresponse.timing.md
@@ -10,7 +10,7 @@ Timing information related to the response.
 
 ```typescript
 class HTTPResponse {
-  timing(): Protocol.Network.ResourceTiming | null;
+  abstract timing(): Protocol.Network.ResourceTiming | null;
 }
 ```
 
diff --git a/docs/api/puppeteer.httpresponse.url.md b/docs/api/puppeteer.httpresponse.url.md
index 01dbb6c3853..d2b1f16494d 100644
--- a/docs/api/puppeteer.httpresponse.url.md
+++ b/docs/api/puppeteer.httpresponse.url.md
@@ -10,7 +10,7 @@ The URL of the response.
 
 ```typescript
 class HTTPResponse {
-  url(): string;
+  abstract url(): string;
 }
 ```
 
diff --git a/packages/puppeteer-core/src/api/HTTPRequest.ts b/packages/puppeteer-core/src/api/HTTPRequest.ts
index 65e8c922ff3..7f699dcc056 100644
--- a/packages/puppeteer-core/src/api/HTTPRequest.ts
+++ b/packages/puppeteer-core/src/api/HTTPRequest.ts
@@ -100,7 +100,7 @@ export const DEFAULT_INTERCEPT_RESOLUTION_PRIORITY = 0;
  *
  * @public
  */
-export class HTTPRequest {
+export abstract class HTTPRequest {
   /**
    * @internal
    */
@@ -131,9 +131,7 @@ export class HTTPRequest {
    *
    * @experimental
    */
-  get client(): CDPSession {
-    throw new Error('Not implemented');
-  }
+  abstract get client(): CDPSession;
 
   /**
    * @internal
@@ -143,33 +141,25 @@ export class HTTPRequest {
   /**
    * The URL of the request
    */
-  url(): string {
-    throw new Error('Not implemented');
-  }
+  abstract url(): string;
 
   /**
    * The `ContinueRequestOverrides` that will be used
    * if the interception is allowed to continue (ie, `abort()` and
    * `respond()` aren't called).
    */
-  continueRequestOverrides(): ContinueRequestOverrides {
-    throw new Error('Not implemented');
-  }
+  abstract continueRequestOverrides(): ContinueRequestOverrides;
 
   /**
    * The `ResponseForRequest` that gets used if the
    * interception is allowed to respond (ie, `abort()` is not called).
    */
-  responseForRequest(): Partial<ResponseForRequest> | null {
-    throw new Error('Not implemented');
-  }
+  abstract responseForRequest(): Partial<ResponseForRequest> | null;
 
   /**
    * The most recent reason for aborting the request
    */
-  abortErrorReason(): Protocol.Network.ErrorReason | null {
-    throw new Error('Not implemented');
-  }
+  abstract abortErrorReason(): Protocol.Network.ErrorReason | null;
 
   /**
    * An InterceptResolutionState object describing the current resolution
@@ -182,17 +172,13 @@ export class HTTPRequest {
    * InterceptResolutionAction is one of: `abort`, `respond`, `continue`,
    * `disabled`, `none`, or `already-handled`.
    */
-  interceptResolutionState(): InterceptResolutionState {
-    throw new Error('Not implemented');
-  }
+  abstract interceptResolutionState(): InterceptResolutionState;
 
   /**
    * Is `true` if the intercept resolution has already been handled,
    * `false` otherwise.
    */
-  isInterceptResolutionHandled(): boolean {
-    throw new Error('Not implemented');
-  }
+  abstract isInterceptResolutionHandled(): boolean;
 
   /**
    * Adds an async request handler to the processing queue.
@@ -200,80 +186,59 @@ export class HTTPRequest {
    * but they are guaranteed to resolve before the request interception
    * is finalized.
    */
-  enqueueInterceptAction(
+  abstract enqueueInterceptAction(
     pendingHandler: () => void | PromiseLike<unknown>
   ): void;
-  enqueueInterceptAction(): void {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Awaits pending interception handlers and then decides how to fulfill
    * the request interception.
    */
-  async finalizeInterceptions(): Promise<void> {
-    throw new Error('Not implemented');
-  }
+  abstract finalizeInterceptions(): Promise<void>;
 
   /**
    * Contains the request's resource type as it was perceived by the rendering
    * engine.
    */
-  resourceType(): ResourceType {
-    throw new Error('Not implemented');
-  }
+  abstract resourceType(): ResourceType;
 
   /**
    * The method used (`GET`, `POST`, etc.)
    */
-  method(): string {
-    throw new Error('Not implemented');
-  }
+  abstract method(): string;
 
   /**
    * The request's post body, if any.
    */
-  postData(): string | undefined {
-    throw new Error('Not implemented');
-  }
+  abstract postData(): string | undefined;
 
   /**
    * An object with HTTP headers associated with the request. All
    * header names are lower-case.
    */
-  headers(): Record<string, string> {
-    throw new Error('Not implemented');
-  }
+  abstract headers(): Record<string, string>;
 
   /**
    * A matching `HTTPResponse` object, or null if the response has not
    * been received yet.
    */
-  response(): HTTPResponse | null {
-    throw new Error('Not implemented');
-  }
+  abstract response(): HTTPResponse | null;
 
   /**
    * The frame that initiated the request, or null if navigating to
    * error pages.
    */
-  frame(): Frame | null {
-    throw new Error('Not implemented');
-  }
+  abstract frame(): Frame | null;
 
   /**
    * True if the request is the driver of the current frame's navigation.
    */
-  isNavigationRequest(): boolean {
-    throw new Error('Not implemented');
-  }
+  abstract isNavigationRequest(): boolean;
 
   /**
    * The initiator of the request.
    */
-  initiator(): Protocol.Network.Initiator | undefined {
-    throw new Error('Not implemented');
-  }
+  abstract initiator(): Protocol.Network.Initiator | undefined;
 
   /**
    * A `redirectChain` is a chain of requests initiated to fetch a resource.
@@ -302,9 +267,7 @@ export class HTTPRequest {
    * @returns the chain of requests - if a server responds with at least a
    * single redirect, this chain will contain all requests that were redirected.
    */
-  redirectChain(): HTTPRequest[] {
-    throw new Error('Not implemented');
-  }
+  abstract redirectChain(): HTTPRequest[];
 
   /**
    * Access information about the request's failure.
@@ -326,9 +289,7 @@ export class HTTPRequest {
    * message, e.g. `net::ERR_FAILED`. It is not guaranteed that there will be
    * failure text if the request fails.
    */
-  failure(): {errorText: string} | null {
-    throw new Error('Not implemented');
-  }
+  abstract failure(): {errorText: string} | null;
 
   /**
    * Continues request with optional request overrides.
@@ -359,13 +320,10 @@ export class HTTPRequest {
    * cooperative handling rules. Otherwise, intercept is resolved
    * immediately.
    */
-  async continue(
+  abstract continue(
     overrides?: ContinueRequestOverrides,
     priority?: number
   ): Promise<void>;
-  async continue(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Fulfills a request with the given response.
@@ -399,13 +357,10 @@ export class HTTPRequest {
    * cooperative handling rules. Otherwise, intercept is resolved
    * immediately.
    */
-  async respond(
+  abstract respond(
     response: Partial<ResponseForRequest>,
     priority?: number
   ): Promise<void>;
-  async respond(): Promise<void> {
-    throw new Error('Not implemented');
-  }
 
   /**
    * Aborts a request.
@@ -420,10 +375,7 @@ export class HTTPRequest {
    * cooperative handling rules. Otherwise, intercept is resolved
    * immediately.
    */
-  async abort(errorCode?: ErrorCode, priority?: number): Promise<void>;
-  async abort(): Promise<void> {
-    throw new Error('Not implemented');
-  }
+  abstract abort(errorCode?: ErrorCode, priority?: number): Promise<void>;
 }
 
 /**
@@ -499,7 +451,7 @@ export function headersArray(
  * List taken from {@link https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml}
  * with extra 306 and 418 codes.
  */
-export const STATUS_TEXTS: Record<string, string | undefined> = {
+export const STATUS_TEXTS: Record<string, string> = {
   '100': 'Continue',
   '101': 'Switching Protocols',
   '102': 'Processing',
diff --git a/packages/puppeteer-core/src/api/HTTPResponse.ts b/packages/puppeteer-core/src/api/HTTPResponse.ts
index f13e725ee84..e82bc261476 100644
--- a/packages/puppeteer-core/src/api/HTTPResponse.ts
+++ b/packages/puppeteer-core/src/api/HTTPResponse.ts
@@ -35,33 +35,22 @@ export interface RemoteAddress {
  *
  * @public
  */
-export class HTTPResponse {
+export abstract class HTTPResponse {
   /**
    * @internal
    */
   constructor() {}
 
-  /**
-   * @internal
-   */
-  _resolveBody(_err: Error | null): void {
-    throw new Error('Not implemented');
-  }
-
   /**
    * The IP address and port number used to connect to the remote
    * server.
    */
-  remoteAddress(): RemoteAddress {
-    throw new Error('Not implemented');
-  }
+  abstract remoteAddress(): RemoteAddress;
 
   /**
    * The URL of the response.
    */
-  url(): string {
-    throw new Error('Not implemented');
-  }
+  abstract url(): string;
 
   /**
    * True if the response was successful (status in the range 200-299).
@@ -75,47 +64,35 @@ export class HTTPResponse {
   /**
    * The status code of the response (e.g., 200 for a success).
    */
-  status(): number {
-    throw new Error('Not implemented');
-  }
+  abstract status(): number;
 
   /**
    * The status text of the response (e.g. usually an "OK" for a
    * success).
    */
-  statusText(): string {
-    throw new Error('Not implemented');
-  }
+  abstract statusText(): string;
 
   /**
    * An object with HTTP headers associated with the response. All
    * header names are lower-case.
    */
-  headers(): Record<string, string> {
-    throw new Error('Not implemented');
-  }
+  abstract headers(): Record<string, string>;
 
   /**
    * {@link SecurityDetails} if the response was received over the
    * secure connection, or `null` otherwise.
    */
-  securityDetails(): SecurityDetails | null {
-    throw new Error('Not implemented');
-  }
+  abstract securityDetails(): SecurityDetails | null;
 
   /**
    * Timing information related to the response.
    */
-  timing(): Protocol.Network.ResourceTiming | null {
-    throw new Error('Not implemented');
-  }
+  abstract timing(): Protocol.Network.ResourceTiming | null;
 
   /**
    * Promise which resolves to a buffer with response body.
    */
-  buffer(): Promise<Buffer> {
-    throw new Error('Not implemented');
-  }
+  abstract buffer(): Promise<Buffer>;
 
   /**
    * Promise which resolves to a text representation of response body.
@@ -141,30 +118,22 @@ export class HTTPResponse {
   /**
    * A matching {@link HTTPRequest} object.
    */
-  request(): HTTPRequest {
-    throw new Error('Not implemented');
-  }
+  abstract request(): HTTPRequest;
 
   /**
    * True if the response was served from either the browser's disk
    * cache or memory cache.
    */
-  fromCache(): boolean {
-    throw new Error('Not implemented');
-  }
+  abstract fromCache(): boolean;
 
   /**
    * True if the response was served by a service worker.
    */
-  fromServiceWorker(): boolean {
-    throw new Error('Not implemented');
-  }
+  abstract fromServiceWorker(): boolean;
 
   /**
    * A {@link Frame} that initiated this response, or `null` if
    * navigating to error pages.
    */
-  frame(): Frame | null {
-    throw new Error('Not implemented');
-  }
+  abstract frame(): Frame | null;
 }
diff --git a/packages/puppeteer-core/src/bidi/HTTPRequest.ts b/packages/puppeteer-core/src/bidi/HTTPRequest.ts
index af187900187..8d123c4ad07 100644
--- a/packages/puppeteer-core/src/bidi/HTTPRequest.ts
+++ b/packages/puppeteer-core/src/bidi/HTTPRequest.ts
@@ -14,9 +14,16 @@
  * limitations under the License.
  */
 import type * as Bidi from 'chromium-bidi/lib/cjs/protocol/protocol.js';
+import type {Protocol} from 'devtools-protocol';
 
 import type {Frame} from '../api/Frame.js';
+import type {
+  ContinueRequestOverrides,
+  InterceptResolutionState,
+  ResponseForRequest,
+} from '../api/HTTPRequest.js';
 import {HTTPRequest, type ResourceType} from '../api/HTTPRequest.js';
+import type {CDPSession} from '../puppeteer-core.js';
 
 import type {BidiHTTPResponse} from './HTTPResponse.js';
 
@@ -64,6 +71,10 @@ export class BidiHTTPRequest extends HTTPRequest {
     }
   }
 
+  override get client(): CDPSession {
+    throw new Error('Not implemented');
+  }
+
   override url(): string {
     return this.#url;
   }
@@ -110,4 +121,49 @@ export class BidiHTTPRequest extends HTTPRequest {
   override frame(): Frame | null {
     return this.#frame;
   }
+
+  override continueRequestOverrides(): ContinueRequestOverrides {
+    throw new Error('Not implemented');
+  }
+
+  override async continue(
+    _overrides: ContinueRequestOverrides = {}
+  ): Promise<void> {
+    throw new Error('Not implemented');
+  }
+
+  override responseForRequest(): Partial<ResponseForRequest> {
+    throw new Error('Not implemented');
+  }
+
+  override abortErrorReason(): Protocol.Network.ErrorReason | null {
+    throw new Error('Not implemented');
+  }
+
+  override interceptResolutionState(): InterceptResolutionState {
+    throw new Error('Not implemented');
+  }
+
+  override isInterceptResolutionHandled(): boolean {
+    throw new Error('Not implemented');
+  }
+
+  override async finalizeInterceptions(): Promise<void> {
+    throw new Error('Not implemented');
+  }
+
+  override abort(): Promise<void> {
+    throw new Error('Not implemented');
+  }
+
+  override respond(
+    _response: Partial<ResponseForRequest>,
+    _priority?: number
+  ): Promise<void> {
+    throw new Error('Not implemented');
+  }
+
+  override failure(): {errorText: string} | null {
+    throw new Error('Not implemented');
+  }
 }
diff --git a/packages/puppeteer-core/src/bidi/HTTPResponse.ts b/packages/puppeteer-core/src/bidi/HTTPResponse.ts
index 7555877f112..e4c7956dc61 100644
--- a/packages/puppeteer-core/src/bidi/HTTPResponse.ts
+++ b/packages/puppeteer-core/src/bidi/HTTPResponse.ts
@@ -21,6 +21,7 @@ import {
   HTTPResponse as HTTPResponse,
   type RemoteAddress,
 } from '../api/HTTPResponse.js';
+import type {SecurityDetails} from '../common/SecurityDetails.js';
 
 import type {BidiHTTPRequest} from './HTTPRequest.js';
 
@@ -105,4 +106,12 @@ export class BidiHTTPResponse extends HTTPResponse {
   override fromServiceWorker(): boolean {
     return false;
   }
+
+  override securityDetails(): SecurityDetails | null {
+    throw new Error('Not implemented');
+  }
+
+  override buffer(): Promise<Buffer> {
+    throw new Error('Not implemented');
+  }
 }
diff --git a/packages/puppeteer-core/src/cdp/HTTPRequest.ts b/packages/puppeteer-core/src/cdp/HTTPRequest.ts
index 754df5242f9..6b4cea40ce6 100644
--- a/packages/puppeteer-core/src/cdp/HTTPRequest.ts
+++ b/packages/puppeteer-core/src/cdp/HTTPRequest.ts
@@ -153,7 +153,7 @@ export class CdpHTTPRequest extends HTTPRequest {
     return this.#interceptionHandled;
   }
 
-  override enqueueInterceptAction(
+  enqueueInterceptAction(
     pendingHandler: () => void | PromiseLike<unknown>
   ): void {
     this.#interceptHandlers.push(pendingHandler);
diff --git a/packages/puppeteer-core/src/cdp/HTTPResponse.ts b/packages/puppeteer-core/src/cdp/HTTPResponse.ts
index 926450c677e..471b9ef1f2a 100644
--- a/packages/puppeteer-core/src/cdp/HTTPResponse.ts
+++ b/packages/puppeteer-core/src/cdp/HTTPResponse.ts
@@ -31,7 +31,7 @@ export class CdpHTTPResponse extends HTTPResponse {
   #client: CDPSession;
   #request: CdpHTTPRequest;
   #contentPromise: Promise<Buffer> | null = null;
-  #bodyLoadedDeferred = Deferred.create<Error | void>();
+  #bodyLoadedDeferred = Deferred.create<void, Error>();
   #remoteAddress: RemoteAddress;
   #status: number;
   #statusText: string;
@@ -96,9 +96,9 @@ export class CdpHTTPResponse extends HTTPResponse {
     return statusText;
   }
 
-  override _resolveBody(err: Error | null): void {
+  _resolveBody(err?: Error): void {
     if (err) {
-      return this.#bodyLoadedDeferred.resolve(err);
+      return this.#bodyLoadedDeferred.reject(err);
     }
     return this.#bodyLoadedDeferred.resolve();
   }
@@ -135,10 +135,7 @@ export class CdpHTTPResponse extends HTTPResponse {
     if (!this.#contentPromise) {
       this.#contentPromise = this.#bodyLoadedDeferred
         .valueOrThrow()
-        .then(async error => {
-          if (error) {
-            throw error;
-          }
+        .then(async () => {
           try {
             const response = await this.#client.send(
               'Network.getResponseBody',
diff --git a/packages/puppeteer-core/src/cdp/NetworkManager.ts b/packages/puppeteer-core/src/cdp/NetworkManager.ts
index 499c260cba4..db840ecdd5c 100644
--- a/packages/puppeteer-core/src/cdp/NetworkManager.ts
+++ b/packages/puppeteer-core/src/cdp/NetworkManager.ts
@@ -680,7 +680,7 @@ export class NetworkManager extends EventEmitter<NetworkManagerEvents> {
     // Under certain conditions we never get the Network.responseReceived
     // event from protocol. @see https://crbug.com/883475
     if (request.response()) {
-      request.response()?._resolveBody(null);
+      request.response()?._resolveBody();
     }
     this.#forgetRequest(request, true);
     this.emit(NetworkManagerEvent.RequestFinished, request);
@@ -712,7 +712,7 @@ export class NetworkManager extends EventEmitter<NetworkManagerEvents> {
     request._failureText = event.errorText;
     const response = request.response();
     if (response) {
-      response._resolveBody(null);
+      response._resolveBody();
     }
     this.#forgetRequest(request, true);
     this.emit(NetworkManagerEvent.RequestFailed, request);