prebid · ChrisHuie · Feb 9, 2022 · Feb 8, 2022
diff --git a/allowedModules.js b/allowedModules.js
@@ -1,9 +1,12 @@
 
 const sharedWhiteList = [
-  'prebidjs-polyfill/arrayFrom',
-  'prebidjs-polyfill/find',
-  'prebidjs-polyfill/findIndex',
-  'prebidjs-polyfill/includes',
+  'core-js-pure/features/array/find', // no ie11
+  'core-js-pure/features/array/includes', // no ie11
+  'core-js-pure/features/set', // ie11 supports Set but not Set#values
+  'core-js-pure/features/string/includes', // no ie11
+  'core-js-pure/features/number/is-integer', // no ie11,
+  'core-js-pure/features/array/from', // no ie11
+  'core-js-pure/web/url-search-params' // no ie11
 ];
 
 module.exports = {

diff --git a/modules/adagioBidAdapter.js b/modules/adagioBidAdapter.js
@@ -1,4 +1,4 @@
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 import {
   isInteger, isArray, deepAccess, mergeDeep, logWarn, logInfo, logError, getWindowTop, getWindowSelf, generateUUID, _map,
   getDNT, parseUrl, getUniqueIdentifierStr, isNumber, cleanObj, isFn, inIframe, deepClone, getGptSlotInfoForAdUnitCode

diff --git a/modules/adbookpspBidAdapter.js b/modules/adbookpspBidAdapter.js
@@ -1,5 +1,5 @@
-import includes from 'prebidjs-polyfill/includes.js';
-import find from 'prebidjs-polyfill/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
+import find from 'core-js-pure/features/array/find';
 import { config } from '../src/config.js';
 import { BANNER, NATIVE, VIDEO } from '../src/mediaTypes.js';
 import { getStorageManager } from '../src/storageManager.js';

diff --git a/modules/adhashBidAdapter.js b/modules/adhashBidAdapter.js
@@ -1,5 +1,5 @@
 import { registerBidder } from '../src/adapters/bidderFactory.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 import { BANNER } from '../src/mediaTypes.js';
 
 const VERSION = '1.0';

diff --git a/modules/adkernelBidAdapter.js b/modules/adkernelBidAdapter.js
@@ -4,8 +4,8 @@ import {
 } from '../src/utils.js';
 import {BANNER, NATIVE, VIDEO} from '../src/mediaTypes.js';
 import {registerBidder} from '../src/adapters/bidderFactory.js';
-import find from 'prebidjs-polyfill/find.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import find from 'core-js-pure/features/array/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
 import {config} from '../src/config.js';
 
 /*

diff --git a/modules/adlooxAnalyticsAdapter.js b/modules/adlooxAnalyticsAdapter.js
@@ -10,7 +10,7 @@ import { loadExternalScript } from '../src/adloader.js';
 import { auctionManager } from '../src/auctionManager.js';
 import { AUCTION_COMPLETED } from '../src/auction.js';
 import CONSTANTS from '../src/constants.json';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 import {
   deepAccess, logInfo, isPlainObject, logError, isStr, isNumber, getGptSlotInfoForAdUnitCode,
   isFn, mergeDeep, logMessage, insertElement, logWarn, getUniqueIdentifierStr, parseUrl

diff --git a/modules/adlooxRtdProvider.js b/modules/adlooxRtdProvider.js
@@ -20,7 +20,7 @@ import {
   getAdUnitSizes, logInfo, isPlainObject, logError, isStr, isInteger, isArray, isBoolean, mergeDeep, deepAccess,
   _each, deepSetValue, logWarn, getGptSlotInfoForAdUnitCode
 } from '../src/utils.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 const MODULE_NAME = 'adloox';
 const MODULE = `${MODULE_NAME}RtdProvider`;

diff --git a/modules/adnowBidAdapter.js b/modules/adnowBidAdapter.js
@@ -1,7 +1,7 @@
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { NATIVE, BANNER } from '../src/mediaTypes.js';
 import { parseSizesInput, deepAccess, parseQueryStringParameters } from '../src/utils.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 const BIDDER_CODE = 'adnow';
 const ENDPOINT = 'https://n.ads3-adnow.com/a';

diff --git a/modules/adomikAnalyticsAdapter.js b/modules/adomikAnalyticsAdapter.js
@@ -2,8 +2,8 @@ import adapter from '../src/AnalyticsAdapter.js';
 import CONSTANTS from '../src/constants.json';
 import adapterManager from '../src/adapterManager.js';
 import { logInfo } from '../src/utils.js';
-import find from 'prebidjs-polyfill/find.js';
-import findIndex from 'prebidjs-polyfill/findIndex.js';
+import find from 'core-js-pure/features/array/find.js';
+import findIndex from 'core-js-pure/features/array/find-index.js';
 
 // Events used in adomik analytics adapter
 const auctionInit = CONSTANTS.EVENTS.AUCTION_INIT;

diff --git a/modules/adotBidAdapter.js b/modules/adotBidAdapter.js
@@ -1,8 +1,8 @@
-import { Renderer } from '../src/Renderer.js';
-import { registerBidder } from '../src/adapters/bidderFactory.js';
-import { BANNER, NATIVE, VIDEO } from '../src/mediaTypes.js';
-import { isFn, isArray, isBoolean, isStr, isPlainObject, logError, replaceAuctionPrice } from '../src/utils.js';
-import find from 'prebidjs-polyfill/find.js';
+import {Renderer} from '../src/Renderer.js';
+import {registerBidder} from '../src/adapters/bidderFactory.js';
+import {BANNER, NATIVE, VIDEO} from '../src/mediaTypes.js';
+import {isStr, isFn, isArray, isPlainObject, isBoolean, logError, replaceAuctionPrice} from '../src/utils.js';
+import find from 'core-js-pure/features/array/find.js';
 import { config } from '../src/config.js';
 import { OUTSTREAM } from '../src/video.js';
 

diff --git a/modules/adpod.js b/modules/adpod.js
@@ -23,11 +23,12 @@ import { setupBeforeHookFnOnce, module } from '../src/hook.js';
 import { store } from '../src/videoCache.js';
 import { config } from '../src/config.js';
 import { ADPOD } from '../src/mediaTypes.js';
-import find from 'prebidjs-polyfill/find.js';
+import Set from 'core-js-pure/features/set';
+import find from 'core-js-pure/features/array/find.js';
 import { auctionManager } from '../src/auctionManager.js';
 import CONSTANTS from '../src/constants.json';
 
-const from = require('prebidjs-polyfill/arrayFrom.js');
+const from = require('core-js-pure/features/array/from.js');
 
 const TARGETING_KEY_PB_CAT_DUR = 'hb_pb_cat_dur';
 const TARGETING_KEY_CACHE_ID = 'hb_cache_id';

diff --git a/modules/adrelevantisBidAdapter.js b/modules/adrelevantisBidAdapter.js
@@ -6,8 +6,8 @@ import {
 import { config } from '../src/config.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { BANNER, NATIVE, VIDEO } from '../src/mediaTypes.js';
-import find from 'prebidjs-polyfill/find.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import find from 'core-js-pure/features/array/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
 import { OUTSTREAM, INSTREAM } from '../src/video.js';
 
 const BIDDER_CODE = 'adrelevantis';

diff --git a/modules/adtargetBidAdapter.js b/modules/adtargetBidAdapter.js
@@ -2,7 +2,7 @@ import { deepAccess, isArray, chunk, _map, flatten, logError, parseSizesInput }
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { BANNER, VIDEO } from '../src/mediaTypes.js';
 import { config } from '../src/config.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 
 const ENDPOINT = 'https://ghb.console.adtarget.com.tr/v2/auction/';
 const BIDDER_CODE = 'adtarget';

diff --git a/modules/adtelligentBidAdapter.js b/modules/adtelligentBidAdapter.js
@@ -3,7 +3,7 @@ import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { ADPOD, BANNER, VIDEO } from '../src/mediaTypes.js';
 import { config } from '../src/config.js';
 import { Renderer } from '../src/Renderer.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 
 const subdomainSuffixes = ['', 1, 2];
 const AUCTION_PATH = '/v2/auction/';

diff --git a/modules/advangelistsBidAdapter.js b/modules/advangelistsBidAdapter.js
@@ -2,8 +2,8 @@ import { isEmpty, deepAccess, isFn, parseSizesInput, generateUUID, parseUrl } fr
 import { config } from '../src/config.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { VIDEO, BANNER } from '../src/mediaTypes.js';
-import find from 'prebidjs-polyfill/find.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import find from 'core-js-pure/features/array/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 const ADAPTER_VERSION = '1.0';
 const BIDDER_CODE = 'advangelists';

diff --git a/modules/adxpremiumAnalyticsAdapter.js b/modules/adxpremiumAnalyticsAdapter.js
@@ -3,7 +3,7 @@ import { ajax } from '../src/ajax.js';
 import adapter from '../src/AnalyticsAdapter.js';
 import adapterManager from '../src/adapterManager.js';
 import CONSTANTS from '../src/constants.json';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 const analyticsType = 'endpoint';
 const defaultUrl = 'https://adxpremium.services/graphql';

diff --git a/modules/adyoulikeBidAdapter.js b/modules/adyoulikeBidAdapter.js
@@ -2,7 +2,7 @@ import { deepAccess, buildUrl, parseSizesInput } from '../src/utils.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { config } from '../src/config.js';
 import { createEidsArray } from './userId/eids.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 import {BANNER, NATIVE, VIDEO} from '../src/mediaTypes.js';
 
 const VERSION = '1.0';

diff --git a/modules/afpBidAdapter.js b/modules/afpBidAdapter.js
@@ -1,4 +1,4 @@
-import includes from 'prebidjs-polyfill/includes.js'
+import includes from 'core-js-pure/features/array/includes.js'
 import { registerBidder } from '../src/adapters/bidderFactory.js'
 import { Renderer } from '../src/Renderer.js'
 import { BANNER, VIDEO } from '../src/mediaTypes.js'

diff --git a/modules/appnexusBidAdapter.js b/modules/appnexusBidAdapter.js
@@ -4,8 +4,8 @@ import { config } from '../src/config.js';
 import { registerBidder, getIabSubCategory } from '../src/adapters/bidderFactory.js';
 import { BANNER, NATIVE, VIDEO, ADPOD } from '../src/mediaTypes.js';
 import { auctionManager } from '../src/auctionManager.js';
-import find from 'prebidjs-polyfill/find.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import find from 'core-js-pure/features/array/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
 import { OUTSTREAM, INSTREAM } from '../src/video.js';
 import { getStorageManager } from '../src/storageManager.js';
 import { bidderSettings } from '../src/bidderSettings.js';

diff --git a/modules/beachfrontBidAdapter.js b/modules/beachfrontBidAdapter.js
@@ -3,8 +3,8 @@ import { config } from '../src/config.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { Renderer } from '../src/Renderer.js';
 import { VIDEO, BANNER } from '../src/mediaTypes.js';
-import find from 'prebidjs-polyfill/find.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import find from 'core-js-pure/features/array/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 const ADAPTER_VERSION = '1.19';
 const ADAPTER_NAME = 'BFIO_PREBID';

diff --git a/modules/betweenBidAdapter.js b/modules/betweenBidAdapter.js
@@ -6,7 +6,7 @@ const BIDDER_CODE = 'between';
 let ENDPOINT = 'https://ads.betweendigital.com/adjson?t=prebid';
 const CODE_TYPES = ['inpage', 'preroll', 'midroll', 'postroll'];
 
-const includes = require('prebidjs-polyfill/includes.js');
+const includes = require('core-js-pure/features/array/includes.js');
 export const spec = {
   code: BIDDER_CODE,
   aliases: ['btw'],

diff --git a/modules/bidViewability.js b/modules/bidViewability.js
@@ -8,7 +8,7 @@ import CONSTANTS from '../src/constants.json';
 import { logWarn, isFn, triggerPixel } from '../src/utils.js';
 import { getGlobal } from '../src/prebidGlobal.js';
 import adapterManager, { gdprDataHandler, uspDataHandler } from '../src/adapterManager.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 
 const MODULE_NAME = 'bidViewability';
 const CONFIG_ENABLED = 'enabled';

diff --git a/modules/bluebillywigBidAdapter.js b/modules/bluebillywigBidAdapter.js
@@ -1,5 +1,5 @@
 import { deepAccess, deepSetValue, deepClone, logWarn, logError } from '../src/utils.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { VIDEO } from '../src/mediaTypes.js';
 import { config } from '../src/config.js';

diff --git a/modules/bridgewellBidAdapter.js b/modules/bridgewellBidAdapter.js
@@ -1,7 +1,7 @@
 import { _each, inIframe, deepSetValue } from '../src/utils.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { BANNER, NATIVE } from '../src/mediaTypes.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 
 const BIDDER_CODE = 'bridgewell';
 const REQUEST_ENDPOINT = 'https://prebid.scupio.com/recweb/prebid.aspx?cb=';

diff --git a/modules/browsiRtdProvider.js b/modules/browsiRtdProvider.js
@@ -20,9 +20,9 @@ import {submodule} from '../src/hook.js';
 import {ajaxBuilder} from '../src/ajax.js';
 import {loadExternalScript} from '../src/adloader.js';
 import {getStorageManager} from '../src/storageManager.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 import {getGlobal} from '../src/prebidGlobal.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 const storage = getStorageManager();
 

diff --git a/modules/cleanmedianetBidAdapter.js b/modules/cleanmedianetBidAdapter.js
@@ -3,7 +3,7 @@ import {registerBidder} from '../src/adapters/bidderFactory.js';
 import {config} from '../src/config.js';
 import {Renderer} from '../src/Renderer.js';
 import {BANNER, VIDEO} from '../src/mediaTypes.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 export const helper = {
   getTopWindowDomain: function (url) {

diff --git a/modules/connectIdSystem.js b/modules/connectIdSystem.js
@@ -8,7 +8,7 @@
 import {ajax} from '../src/ajax.js';
 import {submodule} from '../src/hook.js';
 import {logError, formatQS} from '../src/utils.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 const MODULE_NAME = 'connectId';
 const VENDOR_ID = 25;

diff --git a/modules/consentManagement.js b/modules/consentManagement.js
@@ -8,7 +8,8 @@
 import { logInfo, isFn, getAdUnitSizes, logWarn, isStr, isPlainObject, logError, isNumber } from '../src/utils.js';
 import { config } from '../src/config.js';
 import { gdprDataHandler } from '../src/adapterManager.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
+import strIncludes from 'core-js-pure/features/string/includes.js';
 
 const DEFAULT_CMP = 'iab';
 const DEFAULT_CONSENT_TIMEOUT = 10000;
@@ -248,7 +249,7 @@ function lookupIabConsent(cmpSuccess, cmpError, hookConfig) {
 
     function readPostMessageResponse(event) {
       let cmpDataPkgName = `${apiName}Return`;
-      let json = (typeof event.data === 'string' && includes(event.data, cmpDataPkgName)) ? JSON.parse(event.data) : event.data;
+      let json = (typeof event.data === 'string' && strIncludes(event.data, cmpDataPkgName)) ? JSON.parse(event.data) : event.data;
       if (json[cmpDataPkgName] && json[cmpDataPkgName].callId) {
         let payload = json[cmpDataPkgName];
         // TODO - clean up this logic (move listeners?); we have duplicate messages responses because 2 eventlisteners are active from the 2 cmp requests running in parallel

diff --git a/modules/craftBidAdapter.js b/modules/craftBidAdapter.js
@@ -2,8 +2,8 @@ import { logError, convertTypes, convertCamelToUnderscore, isArray, deepAccess,
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { BANNER, NATIVE, VIDEO } from '../src/mediaTypes.js';
 import { auctionManager } from '../src/auctionManager.js';
-import find from 'prebidjs-polyfill/find.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import find from 'core-js-pure/features/array/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
 import { getStorageManager } from '../src/storageManager.js';
 import {ajax} from '../src/ajax.js';
 

diff --git a/modules/criteoBidAdapter.js b/modules/criteoBidAdapter.js
@@ -3,7 +3,7 @@ import {loadExternalScript} from '../src/adloader.js';
 import {registerBidder} from '../src/adapters/bidderFactory.js';
 import {config} from '../src/config.js';
 import {BANNER, NATIVE, VIDEO} from '../src/mediaTypes.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 import { verify } from 'criteo-direct-rsa-validate/build/verify.js'; // ref#2
 import { getStorageManager } from '../src/storageManager.js';
 

diff --git a/modules/cwireBidAdapter.js b/modules/cwireBidAdapter.js
@@ -16,7 +16,7 @@ import {
   logWarn,
 } from '../src/utils.js';
 import { Renderer } from '../src/Renderer.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 
 // ------------------------------------
 const BIDDER_CODE = 'cwire';

diff --git a/modules/dailyhuntBidAdapter.js b/modules/dailyhuntBidAdapter.js
@@ -2,7 +2,7 @@ import { registerBidder } from '../src/adapters/bidderFactory.js';
 import * as mediaTypes from '../src/mediaTypes.js';
 import {deepAccess, _map, isEmpty} from '../src/utils.js';
 import { ajax } from '../src/ajax.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 import { OUTSTREAM, INSTREAM } from '../src/video.js';
 
 const BIDDER_CODE = 'dailyhunt';

diff --git a/modules/dchain.js b/modules/dchain.js
@@ -1,4 +1,4 @@
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 import { config } from '../src/config.js';
 import { getHook } from '../src/hook.js';
 import { _each, isStr, isArray, isPlainObject, hasOwn, deepClone, deepAccess, logWarn, logError } from '../src/utils.js';

diff --git a/modules/emx_digitalBidAdapter.js b/modules/emx_digitalBidAdapter.js
@@ -2,8 +2,8 @@ import { isArray, logWarn, logError, parseUrl, deepAccess, isStr, _each, getBidI
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { BANNER, VIDEO } from '../src/mediaTypes.js';
 import { Renderer } from '../src/Renderer.js';
-import includes from 'prebidjs-polyfill/includes.js';
-import find from 'prebidjs-polyfill/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
+import find from 'core-js-pure/features/array/find.js';
 
 const BIDDER_CODE = 'emx_digital';
 const ENDPOINT = 'hb.emxdgt.com';

diff --git a/modules/fluctBidAdapter.js b/modules/fluctBidAdapter.js
@@ -1,5 +1,6 @@
 import { _each, isEmpty } from '../src/utils.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
+import URLSearchParams from 'core-js-pure/web/url-search-params'
 
 const BIDDER_CODE = 'fluct';
 const END_POINT = 'https://hb.adingo.jp/prebid';

diff --git a/modules/gamoshiBidAdapter.js b/modules/gamoshiBidAdapter.js
@@ -3,7 +3,7 @@ import {registerBidder} from '../src/adapters/bidderFactory.js';
 import {config} from '../src/config.js';
 import {Renderer} from '../src/Renderer.js';
 import {BANNER, VIDEO} from '../src/mediaTypes.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import includes from 'core-js-pure/features/array/includes.js';
 
 const ENDPOINTS = {
   'gamoshi': 'https://rtb.gamoshi.io'

diff --git a/modules/gdprEnforcement.js b/modules/gdprEnforcement.js
@@ -5,8 +5,8 @@
 import { deepAccess, logWarn, isArray, hasDeviceAccess } from '../src/utils.js';
 import { config } from '../src/config.js';
 import adapterManager, { gdprDataHandler } from '../src/adapterManager.js';
-import find from 'prebidjs-polyfill/find.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import find from 'core-js-pure/features/array/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
 import { registerSyncInner } from '../src/adapters/bidderFactory.js';
 import { getHook } from '../src/hook.js';
 import { validateStorageEnforcement } from '../src/storageManager.js';

diff --git a/modules/glomexBidAdapter.js b/modules/glomexBidAdapter.js
@@ -1,5 +1,5 @@
 import { registerBidder } from '../src/adapters/bidderFactory.js'
-import find from 'prebidjs-polyfill/find.js'
+import find from 'core-js-pure/features/array/find.js'
 import { BANNER } from '../src/mediaTypes.js'
 
 const ENDPOINT = 'https://prebid.mes.glomex.cloud/request-bid'

diff --git a/modules/goldbachBidAdapter.js b/modules/goldbachBidAdapter.js
@@ -27,8 +27,8 @@ import { config } from '../src/config.js';
 import { registerBidder, getIabSubCategory } from '../src/adapters/bidderFactory.js';
 import { BANNER, NATIVE, VIDEO, ADPOD } from '../src/mediaTypes.js';
 import { auctionManager } from '../src/auctionManager.js';
-import find from 'prebidjs-polyfill/find.js';
-import includes from 'prebidjs-polyfill/includes.js';
+import find from 'core-js-pure/features/array/find.js';
+import includes from 'core-js-pure/features/array/includes.js';
 import { OUTSTREAM, INSTREAM } from '../src/video.js';
 
 const BIDDER_CODE = 'goldbach';

diff --git a/modules/gptPreAuction.js b/modules/gptPreAuction.js
@@ -1,7 +1,7 @@
 import { isGptPubadsDefined, isAdUnitCodeMatchingSlot, deepAccess, pick, logInfo } from '../src/utils.js';
 import { config } from '../src/config.js';
 import { getHook } from '../src/hook.js';
-import find from 'prebidjs-polyfill/find.js';
+import find from 'core-js-pure/features/array/find.js';
 
 const MODULE_NAME = 'GPT Pre-Auction';
 export let _currentConfig = {};