diff --git a/packages/sdk/cloudflare/src/platform/eventSource.ts b/packages/sdk/cloudflare/src/platform/eventSource.ts
deleted file mode 100644
index 1d64cdd062..0000000000
--- a/packages/sdk/cloudflare/src/platform/eventSource.ts
+++ /dev/null
@@ -1,33 +0,0 @@
-// TODO: Dry this file duplicated in this repo
-import type { EventSource, EventSourceInitDict } from '@launchdarkly/js-sdk-common';
-
-export default class MockEventSource implements EventSource {
-  handlers: Record<string, (event?: { data?: any }) => void> = {};
-
-  closed = false;
-
-  url: string;
-
-  options: EventSourceInitDict;
-
-  constructor(url: string, options: EventSourceInitDict) {
-    this.url = url;
-    this.options = options;
-  }
-
-  onclose: (() => void) | undefined;
-
-  onerror: (() => void) | undefined;
-
-  onopen: (() => void) | undefined;
-
-  onretrying: ((e: { delayMillis: number }) => void) | undefined;
-
-  addEventListener(type: string, listener: (event?: { data?: any }) => void): void {
-    this.handlers[type] = listener;
-  }
-
-  close(): void {
-    this.closed = true;
-  }
-}
diff --git a/packages/sdk/cloudflare/src/platform/requests.ts b/packages/sdk/cloudflare/src/platform/requests.ts
index a25c93d7c9..339774fb13 100644
--- a/packages/sdk/cloudflare/src/platform/requests.ts
+++ b/packages/sdk/cloudflare/src/platform/requests.ts
@@ -1,3 +1,4 @@
+import { NullEventSource } from '@launchdarkly/js-server-sdk-common';
 import type {
   EventSource,
   EventSourceInitDict,
@@ -5,7 +6,6 @@ import type {
   Response,
   Requests,
 } from '@launchdarkly/js-server-sdk-common';
-import MockEventSource from './eventSource';
 
 export default class CloudflareRequests implements Requests {
   fetch(url: string, options: Options = {}): Promise<Response> {
@@ -13,6 +13,6 @@ export default class CloudflareRequests implements Requests {
   }
 
   createEventSource(url: string, eventSourceInitDict: EventSourceInitDict): EventSource {
-    return new MockEventSource(url, eventSourceInitDict);
+    return new NullEventSource(url, eventSourceInitDict);
   }
 }
diff --git a/packages/shared/sdk-server/__tests__/data_sources/StreamingProcessor.test.ts b/packages/shared/sdk-server/__tests__/data_sources/StreamingProcessor.test.ts
index b2b40fff46..5207e8a6af 100644
--- a/packages/shared/sdk-server/__tests__/data_sources/StreamingProcessor.test.ts
+++ b/packages/shared/sdk-server/__tests__/data_sources/StreamingProcessor.test.ts
@@ -18,7 +18,7 @@ import InMemoryFeatureStore from '../../src/store/InMemoryFeatureStore';
 import VersionedDataKinds from '../../src/store/VersionedDataKinds';
 import basicPlatform from '../evaluation/mocks/platform';
 import TestLogger, { LogLevel } from '../Logger';
-import MockEventSource from '../MockEventSource';
+import NullEventSource from '../../src/events/NullEventSource';
 
 const sdkKey = 'my-sdk-key';
 
@@ -34,14 +34,14 @@ const info: Info = {
   },
 };
 
-function createRequests(cb: (es: MockEventSource) => void): Requests {
+function createRequests(cb: (es: NullEventSource) => void): Requests {
   return {
     /* eslint-disable-next-line @typescript-eslint/no-unused-vars */
     fetch(url: string, options?: Options | undefined): Promise<Response> {
       throw new Error('Function not implemented.');
     },
     createEventSource(url: string, eventSourceInitDict: EventSourceInitDict): EventSource {
-      const es = new MockEventSource(url, eventSourceInitDict);
+      const es = new NullEventSource(url, eventSourceInitDict);
       cb(es);
       return es;
     },
@@ -49,7 +49,7 @@ function createRequests(cb: (es: MockEventSource) => void): Requests {
 }
 
 describe('given a stream processor with mock event source', () => {
-  let es: MockEventSource;
+  let es: NullEventSource;
   let requests: Requests;
   let featureStore: InMemoryFeatureStore;
   let streamProcessor: StreamingProcessor;
diff --git a/packages/shared/sdk-server/__tests__/MockEventSource.ts b/packages/shared/sdk-server/src/events/NullEventSource.ts
similarity index 93%
rename from packages/shared/sdk-server/__tests__/MockEventSource.ts
rename to packages/shared/sdk-server/src/events/NullEventSource.ts
index 4f40462e34..2c934636ba 100644
--- a/packages/shared/sdk-server/__tests__/MockEventSource.ts
+++ b/packages/shared/sdk-server/src/events/NullEventSource.ts
@@ -1,6 +1,6 @@
 import { EventSource, EventSourceInitDict } from '@launchdarkly/js-sdk-common';
 
-export default class MockEventSource implements EventSource {
+export default class NullEventSource implements EventSource {
   handlers: Record<string, (event?: { data?: any }) => void> = {};
 
   closed = false;
diff --git a/packages/shared/sdk-server/src/events/index.ts b/packages/shared/sdk-server/src/events/index.ts
new file mode 100644
index 0000000000..cc42cc024a
--- /dev/null
+++ b/packages/shared/sdk-server/src/events/index.ts
@@ -0,0 +1,4 @@
+import NullEventSource from './NullEventSource';
+
+// eslint-disable-next-line import/prefer-default-export
+export { NullEventSource };
diff --git a/packages/shared/sdk-server/src/index.ts b/packages/shared/sdk-server/src/index.ts
index ae210cbf63..b538e7a8cb 100644
--- a/packages/shared/sdk-server/src/index.ts
+++ b/packages/shared/sdk-server/src/index.ts
@@ -5,6 +5,7 @@ export * as integrations from './integrations';
 export * as platform from '@launchdarkly/js-sdk-common';
 export * from './api';
 export * from './store';
+export * from './events';
 export * from '@launchdarkly/js-sdk-common';
 
 export { LDClientImpl, BigSegmentStoreStatusProviderImpl };