diff --git a/src/vs/platform/extensionManagement/common/extensionGalleryService.ts b/src/vs/platform/extensionManagement/common/extensionGalleryService.ts
index 6414a46..0bdc5a2 100644
--- a/src/vs/platform/extensionManagement/common/extensionGalleryService.ts
+++ b/src/vs/platform/extensionManagement/common/extensionGalleryService.ts
@@ -1944,3 +1944,3 @@ export abstract class AbstractExtensionGalleryService implements IExtensionGalle
 
-		const context = await this.requestService.request({
+		const requestOptions: IRequestOptions = {
 			type: 'GET',
@@ -1949,3 +1949,9 @@ export abstract class AbstractExtensionGalleryService implements IExtensionGalle
 			callSite: 'extensionGalleryService.getExtensionsControlManifest'
-		}, CancellationToken.None);
+		};
+
+		if (!isWeb) {
+			requestOptions.headers = { Connection: 'close' };
+		}
+
+		const context = await this.requestService.request(requestOptions, CancellationToken.None);