diff --git a/docs/api.md b/docs/api.md
index 90e61a6371d51..1f2ed56683314 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -294,8 +294,6 @@
 - [class: Response](#class-response)
   * [response.buffer()](#responsebuffer)
   * [response.frame()](#responseframe)
-  * [response.fromCache()](#responsefromcache)
-  * [response.fromServiceWorker()](#responsefromserviceworker)
   * [response.headers()](#responseheaders)
   * [response.json()](#responsejson)
   * [response.ok()](#responseok)
@@ -3783,16 +3781,6 @@ page.on('request', request => {
 #### response.frame()
 - returns: <?[Frame]> A [Frame] that initiated this response, or `null` if navigating to error pages.
 
-#### response.fromCache()
-- returns: <[boolean]>
-
-True if the response was served from either the browser's disk cache or memory cache.
-
-#### response.fromServiceWorker()
-- returns: <[boolean]>
-
-True if the response was served by a service worker.
-
 #### response.headers()
 - returns: <[Object]> An object with HTTP headers associated with the response. All header names are lower-case.
 
diff --git a/src/chromium/NetworkManager.ts b/src/chromium/NetworkManager.ts
index 00d1baeee73eb..82fb05a1e471f 100644
--- a/src/chromium/NetworkManager.ts
+++ b/src/chromium/NetworkManager.ts
@@ -53,7 +53,6 @@ export class NetworkManager extends EventEmitter {
     this._client.on('Fetch.requestPaused', this._onRequestPaused.bind(this));
     this._client.on('Fetch.authRequired', this._onAuthRequired.bind(this));
     this._client.on('Network.requestWillBeSent', this._onRequestWillBeSent.bind(this));
-    this._client.on('Network.requestServedFromCache', this._onRequestServedFromCache.bind(this));
     this._client.on('Network.responseReceived', this._onResponseReceived.bind(this));
     this._client.on('Network.loadingFinished', this._onLoadingFinished.bind(this));
     this._client.on('Network.loadingFailed', this._onLoadingFailed.bind(this));
@@ -204,12 +203,6 @@ export class NetworkManager extends EventEmitter {
   }
 
 
-  _onRequestServedFromCache(event: Protocol.Network.requestServedFromCachePayload) {
-    const request = this._requestIdToRequest.get(event.requestId);
-    if (request)
-      request._fromMemoryCache = true;
-  }
-
   _handleRequestRedirect(request: Request, responsePayload: Protocol.Network.Response) {
     const response = new Response(this._client, request, responsePayload);
     request._response = response;
@@ -279,7 +272,6 @@ export class Request {
   private _postData: string;
   private _headers: {[key: string]: string} = {};
   private _frame: Frame;
-  _fromMemoryCache = false;
 
   constructor(client: CDPSession, frame: Frame | null, interceptionId: string, allowInterception: boolean, event: Protocol.Network.requestWillBeSentPayload, redirectChain: Request[]) {
     this._client = client;
@@ -448,8 +440,6 @@ export class Response {
   private _status: number;
   private _statusText: string;
   private _url: string;
-  private _fromDiskCache: boolean;
-  private _fromServiceWorker: boolean;
   private _headers: {[key: string]: string} = {};
   private _securityDetails: SecurityDetails;
 
@@ -468,8 +458,6 @@ export class Response {
     this._status = responsePayload.status;
     this._statusText = responsePayload.statusText;
     this._url = request.url();
-    this._fromDiskCache = !!responsePayload.fromDiskCache;
-    this._fromServiceWorker = !!responsePayload.fromServiceWorker;
     for (const key of Object.keys(responsePayload.headers))
       this._headers[key.toLowerCase()] = responsePayload.headers[key];
     this._securityDetails = responsePayload.securityDetails ? new SecurityDetails(responsePayload.securityDetails) : null;
@@ -531,14 +519,6 @@ export class Response {
     return this._request;
   }
 
-  fromCache(): boolean {
-    return this._fromDiskCache || this._request._fromMemoryCache;
-  }
-
-  fromServiceWorker(): boolean {
-    return this._fromServiceWorker;
-  }
-
   frame(): Frame | null {
     return this._request.frame();
   }
diff --git a/test/network.spec.js b/test/network.spec.js
index 36f8eb44d8628..5eb6813e74342 100644
--- a/test/network.spec.js
+++ b/test/network.spec.js
@@ -97,52 +97,6 @@ module.exports.addTests = function({testRunner, expect, FFOX, CHROME, WEBKIT}) {
     });
   });
 
-  describe.skip(FFOX)('Response.fromCache', function() {
-    it.skip(WEBKIT)('should return |false| for non-cached content', async({page, server}) => {
-      const response = await page.goto(server.EMPTY_PAGE);
-      expect(response.fromCache()).toBe(false);
-    });
-
-    it.skip(WEBKIT)('should work', async({page, server}) => {
-      const responses = new Map();
-      page.on('response', r => !utils.isFavicon(r.request()) && responses.set(r.url().split('/').pop(), r));
-
-      // Load and re-load to make sure it's cached.
-      await page.goto(server.PREFIX + '/cached/one-style.html');
-      await page.reload();
-
-      expect(responses.size).toBe(2);
-      expect(responses.get('one-style.css').status()).toBe(200);
-      expect(responses.get('one-style.css').fromCache()).toBe(true);
-      expect(responses.get('one-style.html').status()).toBe(304);
-      expect(responses.get('one-style.html').fromCache()).toBe(false);
-    });
-  });
-
-  describe.skip(FFOX)('Response.fromServiceWorker', function() {
-    it.skip(WEBKIT)('should return |false| for non-service-worker content', async({page, server}) => {
-      const response = await page.goto(server.EMPTY_PAGE);
-      expect(response.fromServiceWorker()).toBe(false);
-    });
-
-    // FIXME: WebKit responses contain sw.js
-    it.skip(WEBKIT)('Response.fromServiceWorker', async({page, server}) => {
-      const responses = new Map();
-      page.on('response', r => responses.set(r.url().split('/').pop(), r));
-
-      // Load and re-load to make sure serviceworker is installed and running.
-      await page.goto(server.PREFIX + '/serviceworkers/fetch/sw.html', {waitUntil: 'networkidle2'});
-      await page.evaluate(async() => await window.activationPromise);
-      await page.reload();
-
-      expect(responses.size).toBe(2);
-      expect(responses.get('sw.html').status()).toBe(200);
-      expect(responses.get('sw.html').fromServiceWorker()).toBe(true);
-      expect(responses.get('style.css').status()).toBe(200);
-      expect(responses.get('style.css').fromServiceWorker()).toBe(true);
-    });
-  });
-
   describe('Request.postData', function() {
     it('should work', async({page, server}) => {
       await page.goto(server.EMPTY_PAGE);