diff --git a/src/vs/code/browser/workbench/workbench.ts b/src/vs/code/browser/workbench/workbench.ts
index 45f6f17ce06..9d3fafb25d9 100644
--- a/src/vs/code/browser/workbench/workbench.ts
+++ b/src/vs/code/browser/workbench/workbench.ts
@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import { IWorkbenchConstructionOptions, create, URI, Event, Emitter, UriComponents, ICredentialsProvider, IURLCallbackProvider, IWorkspaceProvider, IWorkspace, IApplicationLink } from 'vs/workbench/workbench.web.api';
+import { IWorkbenchConstructionOptions, create, URI, Emitter, UriComponents, ICredentialsProvider, IURLCallbackProvider, IWorkspaceProvider, IWorkspace, IApplicationLink } from 'vs/workbench/workbench.web.api';
 import { generateUuid } from 'vs/base/common/uuid';
 import { CancellationToken } from 'vs/base/common/cancellation';
 import { streamToBuffer } from 'vs/base/common/buffer';
@@ -120,8 +120,8 @@ class PollingURLCallbackProvider extends Disposable implements IURLCallbackProvi
 		FRAGMENT: 'vscode-fragment'
 	};
 
-	private readonly _onCallback: Emitter<URI> = this._register(new Emitter<URI>());
-	readonly onCallback: Event<URI> = this._onCallback.event;
+	private readonly _onCallback = this._register(new Emitter<URI>());
+	readonly onCallback = this._onCallback.event;
 
 	create(options?: Partial<UriComponents>): URI {
 		const queryValues: Map<string, string> = new Map();
diff --git a/src/vs/workbench/browser/web.main.ts b/src/vs/workbench/browser/web.main.ts
index fe12a0da800..4f1c00218a6 100644
--- a/src/vs/workbench/browser/web.main.ts
+++ b/src/vs/workbench/browser/web.main.ts
@@ -130,7 +130,7 @@ class BrowserMain extends Disposable {
 	}
 
 	private restoreBaseTheme(): void {
-		addClass(this.domElement, window.localStorage.getItem('vscode.baseTheme') || getThemeTypeSelector(DARK));
+		addClass(this.domElement, window.localStorage.getItem('vscode.baseTheme') || getThemeTypeSelector(LIGHT) /* Fallback to a light theme by default on web */);
 	}
 
 	private saveBaseTheme(): void {