diff --git a/src/common/NetworkManager.ts b/src/common/NetworkManager.ts
index d1d99d27839f2..a5a440114c035 100644
--- a/src/common/NetworkManager.ts
+++ b/src/common/NetworkManager.ts
@@ -268,6 +268,7 @@ export class NetworkManager extends EventEmitter {
         this._networkEventManager.getRequestPaused(networkRequestId);
       if (requestPausedEvent) {
         const { requestId: fetchRequestId } = requestPausedEvent;
+        this._patchRequestEventHeaders(event, requestPausedEvent);
         this._onRequest(event, fetchRequestId);
         this._networkEventManager.forgetRequestPaused(networkRequestId);
       }
@@ -345,12 +346,24 @@ export class NetworkManager extends EventEmitter {
     })();
 
     if (requestWillBeSentEvent) {
+      this._patchRequestEventHeaders(requestWillBeSentEvent, event);
       this._onRequest(requestWillBeSentEvent, fetchRequestId);
     } else {
       this._networkEventManager.storeRequestPaused(networkRequestId, event);
     }
   }
 
+  _patchRequestEventHeaders(
+    requestWillBeSentEvent: Protocol.Network.RequestWillBeSentEvent,
+    requestPausedEvent: Protocol.Fetch.RequestPausedEvent
+  ): void {
+    requestWillBeSentEvent.request.headers = {
+      ...requestWillBeSentEvent.request.headers,
+      // includes extra headers, like: Accept, Origin
+      ...requestPausedEvent.request.headers,
+    };
+  }
+
   _onRequest(
     event: Protocol.Network.RequestWillBeSentEvent,
     fetchRequestId?: FetchRequestId
diff --git a/test/requestinterception.spec.ts b/test/requestinterception.spec.ts
index 0bde69e013c87..8cf9c7b00f275 100644
--- a/test/requestinterception.spec.ts
+++ b/test/requestinterception.spec.ts
@@ -40,6 +40,7 @@ describe('request interception', function () {
         }
         expect(request.url()).toContain('empty.html');
         expect(request.headers()['user-agent']).toBeTruthy();
+        expect(request.headers()['accept']).toBeTruthy();
         expect(request.method()).toBe('GET');
         expect(request.postData()).toBe(undefined);
         expect(request.isNavigationRequest()).toBe(true);