diff --git a/src/vs/code/electron-main/window.ts b/src/vs/code/electron-main/window.ts
index b55f4095e3b..5eb01d0c5d7 100644
--- a/src/vs/code/electron-main/window.ts
+++ b/src/vs/code/electron-main/window.ts
@@ -438,15 +438,8 @@ export class CodeWindow extends Disposable implements ICodeWindow {
 
 		// Inject headers when requests are incoming
 		const urls = ['https://marketplace.visualstudio.com/*', 'https://*.vsassets.io/*'];
-		this._win.webContents.session.webRequest.onBeforeSendHeaders({ urls }, (details, cb) => {
-			this.marketplaceHeadersPromise.then(headers => {
-				const requestHeaders = objects.assign(details.requestHeaders, headers) as { [key: string]: string | undefined };
-				if (!this.configurationService.getValue('extensions.disableExperimentalAzureSearch')) {
-					requestHeaders['Cookie'] = `${requestHeaders['Cookie'] ? requestHeaders['Cookie'] + ';' : ''}EnableExternalSearchForVSCode=true`;
-				}
-				cb({ cancel: false, requestHeaders });
-			});
-		});
+		this._win.webContents.session.webRequest.onBeforeSendHeaders({ urls }, (details, cb) =>
+			this.marketplaceHeadersPromise.then(headers => cb({ cancel: false, requestHeaders: objects.assign(details.requestHeaders, headers) as { [key: string]: string | undefined } })));
 	}
 
 	private onWindowError(error: WindowError): void {