diff --git a/desktop/plugins/public/network/__tests__/datastorage.node.tsx b/desktop/plugins/public/network/__tests__/datastorage.node.tsx
new file mode 100644
index 00000000000..557713ef73f
--- /dev/null
+++ b/desktop/plugins/public/network/__tests__/datastorage.node.tsx
@@ -0,0 +1,70 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+import {createDataSource} from 'flipper-plugin';
+import {RequestDataDB} from '../RequestDataDB';
+import {createRequestFromRequestInfo} from '../index';
+
+import {decodeBody} from '../utils';
+
+import {Request} from '../types';
+import {Base64} from 'js-base64';
+
+// IndexedDB polyfill
+global.structuredClone = (val) => (val ? JSON.parse(JSON.stringify(val)) : val);
+require('fake-indexeddb/auto');
+
+const firstRequest = {
+  id: '17',
+  timestamp: 1234567890,
+  method: 'GET',
+  url: 'https://fbflipper.com/',
+  headers: [{key: 'Content-Type', value: 'text/plain'}],
+  data: undefined,
+};
+
+const secondRequest = {
+  id: '17',
+  timestamp: 1234567890,
+  method: 'GET', // same as before
+  url: 'https://fallback.fbflipper.com/', // changed from before
+  headers: [{key: 'Content-Type', value: 'text/plain'}],
+  data: Base64.encode('hello world'), // new field (not stored in DataSource)
+};
+
+test('DataSource handles updates', () => {
+  const requests = createDataSource<Request, 'id'>([], {
+    key: 'id',
+    indices: [['method'], ['status']],
+  });
+  const customColumns = [];
+
+  requests.upsert(createRequestFromRequestInfo(firstRequest, customColumns));
+  requests.upsert(createRequestFromRequestInfo(secondRequest, customColumns));
+
+  const result = requests.getById('17');
+  expect(result?.method).toEqual('GET');
+  expect(result?.url).toEqual('https://fallback.fbflipper.com/');
+});
+
+test('RequestDataDB handles updates', async () => {
+  const db = new RequestDataDB();
+
+  db.storeRequestData(
+    firstRequest.id,
+    decodeBody(firstRequest.headers, firstRequest.data),
+  );
+  db.storeRequestData(
+    secondRequest.id,
+    decodeBody(secondRequest.headers, secondRequest.data),
+  );
+
+  const result = await db.getRequestData('17');
+  expect(result).toEqual('hello world');
+});
diff --git a/desktop/plugins/public/network/index.tsx b/desktop/plugins/public/network/index.tsx
index 8ed54aa20fd..a42c5dac855 100644
--- a/desktop/plugins/public/network/index.tsx
+++ b/desktop/plugins/public/network/index.tsx
@@ -170,13 +170,10 @@ export function plugin(client: PluginClient<Events, Methods>) {
   });
 
   client.onMessage('newRequest', (data) => {
-    // Some network stacks may send duplicate data, so we filter them out.
-    if (requests.has(data.id)) {
-      console.warn(`Ignoring duplicate request with id ${data.id}:`, data);
-    } else {
-      requests.append(createRequestFromRequestInfo(data, customColumns.get()));
-      db.storeRequestData(data.id, decodeBody(data.headers, data.data));
-    }
+    // Network stacks might emit newRequest multiple times with incremental
+    // data, hence the upsert.
+    requests.upsert(createRequestFromRequestInfo(data, customColumns.get()));
+    db.storeRequestData(data.id, decodeBody(data.headers, data.data));
   });
 
   function storeResponse(response: ResponseInfo) {
@@ -542,7 +539,7 @@ function showCustomColumnDialog(
   renderReactRoot((unmount) => <CustomColumnDialog unmount={unmount} />);
 }
 
-function createRequestFromRequestInfo(
+export function createRequestFromRequestInfo(
   data: RequestInfo,
   customColumns: CustomColumnConfig[],
 ): Request {