diff --git a/extensions/typescript-language-features/src/lazyClientHost.ts b/extensions/typescript-language-features/src/lazyClientHost.ts
index 73dee25e6c3..d7108e96ebb 100644
--- a/extensions/typescript-language-features/src/lazyClientHost.ts
+++ b/extensions/typescript-language-features/src/lazyClientHost.ts
@@ -33,7 +33,7 @@ export function createLazyClientHost(
 	return lazy(() => {
 		const clientHost = new TypeScriptServiceClientHost(
 			standardLanguageDescriptions,
-			context.workspaceState,
+			context,
 			onCaseInsenitiveFileSystem,
 			services,
 			onCompletionAccepted);
diff --git a/extensions/typescript-language-features/src/typeScriptServiceClientHost.ts b/extensions/typescript-language-features/src/typeScriptServiceClientHost.ts
index 76471a20432..af08509e40d 100644
--- a/extensions/typescript-language-features/src/typeScriptServiceClientHost.ts
+++ b/extensions/typescript-language-features/src/typeScriptServiceClientHost.ts
@@ -57,7 +57,7 @@ export default class TypeScriptServiceClientHost extends Disposable {
 
 	constructor(
 		descriptions: LanguageDescription[],
-		workspaceState: vscode.Memento,
+		context: vscode.ExtensionContext,
 		onCaseInsenitiveFileSystem: boolean,
 		services: {
 			pluginManager: PluginManager,
@@ -75,7 +75,7 @@ export default class TypeScriptServiceClientHost extends Disposable {
 
 		const allModeIds = this.getAllModeIds(descriptions, services.pluginManager);
 		this.client = this._register(new TypeScriptServiceClient(
-			workspaceState,
+			context,
 			onCaseInsenitiveFileSystem,
 			services,
 			allModeIds));
diff --git a/extensions/typescript-language-features/src/typescriptServiceClient.ts b/extensions/typescript-language-features/src/typescriptServiceClient.ts
index 629c833b221..c27928ad1e1 100644
--- a/extensions/typescript-language-features/src/typescriptServiceClient.ts
+++ b/extensions/typescript-language-features/src/typescriptServiceClient.ts
@@ -97,6 +97,8 @@ export default class TypeScriptServiceClient extends Disposable implements IType
 	private readonly pathSeparator: string;
 	private readonly inMemoryResourcePrefix = '^';
 
+	private readonly workspaceState: vscode.Memento;
+
 	private _onReady?: { promise: Promise<void>; resolve: () => void; reject: () => void; };
 	private _configuration: TypeScriptServiceConfiguration;
 	private pluginPathsProvider: TypeScriptPluginPathsProvider;
@@ -125,7 +127,7 @@ export default class TypeScriptServiceClient extends Disposable implements IType
 	private readonly processFactory: TsServerProcessFactory;
 
 	constructor(
-		private readonly workspaceState: vscode.Memento,
+		private readonly context: vscode.ExtensionContext,
 		onCaseInsenitiveFileSystem: boolean,
 		services: {
 			pluginManager: PluginManager,
@@ -138,6 +140,8 @@ export default class TypeScriptServiceClient extends Disposable implements IType
 	) {
 		super();
 
+		this.workspaceState = context.workspaceState;
+
 		this.pluginManager = services.pluginManager;
 		this.logDirectoryProvider = services.logDirectoryProvider;
 		this.cancellerFactory = services.cancellerFactory;
@@ -686,6 +690,13 @@ export default class TypeScriptServiceClient extends Disposable implements IType
 	}
 
 	public toResource(filepath: string): vscode.Uri {
+		if (isWeb()) {
+			// On web, treat absolute paths as pointing to standard lib files
+			if (filepath.startsWith('/')) {
+				return vscode.Uri.joinPath(this.context.extensionUri, 'node_modules', 'typescript-web', 'lib', filepath.slice(1));
+			}
+		}
+
 		if (filepath.startsWith(this.inMemoryResourcePrefix)) {
 			const resource = vscode.Uri.parse(filepath.slice(1));
 			return this.bufferSyncSupport.toVsCodeResource(resource);