diff --git a/packages/playwright-core/src/server/transport.ts b/packages/playwright-core/src/server/transport.ts
index e213e030e7..507225b04c 100644
--- a/packages/playwright-core/src/server/transport.ts
+++ b/packages/playwright-core/src/server/transport.ts
@@ -24,6 +24,7 @@ import { httpHappyEyeballsAgent, httpsHappyEyeballsAgent } from '../utils/happy-
 import type { HeadersArray } from './types';
 
 export const perMessageDeflate = {
+  clientNoContextTakeover: true,
   zlibDeflateOptions: {
     level: 3,
   },
diff --git a/packages/playwright-core/src/utils/wsServer.ts b/packages/playwright-core/src/utils/wsServer.ts
index 63c0ed1fed..636a57c3cc 100644
--- a/packages/playwright-core/src/utils/wsServer.ts
+++ b/packages/playwright-core/src/utils/wsServer.ts
@@ -25,6 +25,7 @@ let lastConnectionId = 0;
 const kConnectionSymbol = Symbol('kConnection');
 
 export const perMessageDeflate = {
+  serverNoContextTakeover: true,
   zlibDeflateOptions: {
     level: 3,
   },