diff --git a/extensions/html-language-features/server/src/htmlServerMain.ts b/extensions/html-language-features/server/src/htmlServerMain.ts
index ffe5c18df41..c46d6bbd0d5 100644
--- a/extensions/html-language-features/server/src/htmlServerMain.ts
+++ b/extensions/html-language-features/server/src/htmlServerMain.ts
@@ -136,7 +136,7 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
 	return { capabilities };
 });
 
-connection.onInitialized((p) => {
+connection.onInitialized(() => {
 	if (workspaceFoldersSupport) {
 		connection.client.register(DidChangeWorkspaceFoldersNotification.type);
 
diff --git a/extensions/html-language-features/server/src/modes/cssMode.ts b/extensions/html-language-features/server/src/modes/cssMode.ts
index f492a9dd21c..538aa72ff7e 100644
--- a/extensions/html-language-features/server/src/modes/cssMode.ts
+++ b/extensions/html-language-features/server/src/modes/cssMode.ts
@@ -24,7 +24,7 @@ export function getCSSMode(documentRegions: LanguageModelCache<HTMLDocumentRegio
 			let embedded = embeddedCSSDocuments.get(document);
 			return cssLanguageService.doValidation(embedded, cssStylesheets.get(embedded), settings && settings.css);
 		},
-		doComplete(document: TextDocument, position: Position, settings = workspace.settings) {
+		doComplete(document: TextDocument, position: Position, _settings = workspace.settings) {
 			let embedded = embeddedCSSDocuments.get(document);
 			const stylesheet = cssStylesheets.get(embedded);
 			return cssLanguageService.doComplete(embedded, position, stylesheet) || CompletionList.create();
diff --git a/extensions/html-language-features/server/src/modes/embeddedSupport.ts b/extensions/html-language-features/server/src/modes/embeddedSupport.ts
index f4271889fdf..32f7a943683 100644
--- a/extensions/html-language-features/server/src/modes/embeddedSupport.ts
+++ b/extensions/html-language-features/server/src/modes/embeddedSupport.ts
@@ -132,7 +132,7 @@ function getLanguageRanges(document: TextDocument, regions: EmbeddedRegion[], ra
 	return result;
 }
 
-function getLanguagesInDocument(document: TextDocument, regions: EmbeddedRegion[]): string[] {
+function getLanguagesInDocument(_document: TextDocument, regions: EmbeddedRegion[]): string[] {
 	let result = [];
 	for (let region of regions) {
 		if (region.languageId && result.indexOf(region.languageId) === -1) {
diff --git a/extensions/html-language-features/server/src/modes/htmlFolding.ts b/extensions/html-language-features/server/src/modes/htmlFolding.ts
index 40977e894be..2db0bc25182 100644
--- a/extensions/html-language-features/server/src/modes/htmlFolding.ts
+++ b/extensions/html-language-features/server/src/modes/htmlFolding.ts
@@ -7,7 +7,7 @@ import { TextDocument, CancellationToken, Position, Range } from 'vscode-languag
 import { FoldingRange } from 'vscode-languageserver-types';
 import { LanguageModes, LanguageMode } from './languageModes';
 
-export function getFoldingRanges(languageModes: LanguageModes, document: TextDocument, maxRanges: number | undefined, cancellationToken: CancellationToken | null): FoldingRange[] {
+export function getFoldingRanges(languageModes: LanguageModes, document: TextDocument, maxRanges: number | undefined, _cancellationToken: CancellationToken | null): FoldingRange[] {
 	let htmlMode = languageModes.getMode('html');
 	let range = Range.create(Position.create(0, 0), Position.create(document.lineCount, 0));
 	let result: FoldingRange[] = [];
diff --git a/extensions/html-language-features/server/src/modes/javascriptMode.ts b/extensions/html-language-features/server/src/modes/javascriptMode.ts
index 7768912f061..ebeaa4769e9 100644
--- a/extensions/html-language-features/server/src/modes/javascriptMode.ts
+++ b/extensions/html-language-features/server/src/modes/javascriptMode.ts
@@ -10,7 +10,7 @@ import {
 	Definition, TextEdit, TextDocument, Diagnostic, DiagnosticSeverity, Range, CompletionItemKind, Hover, MarkedString,
 	DocumentHighlight, DocumentHighlightKind, CompletionList, Position, FormattingOptions, FoldingRange, FoldingRangeKind
 } from 'vscode-languageserver-types';
-import { LanguageMode, Settings, Workspace } from './languageModes';
+import { LanguageMode, Settings } from './languageModes';
 import { getWordAtText, startsWith, isWhitespaceOnly, repeat } from '../utils/strings';
 import { HTMLDocumentRegions } from './embeddedSupport';
 
@@ -25,7 +25,7 @@ if (!ts.sys.fileExists(jquery_d_ts)) {
 	jquery_d_ts = join(__dirname, '../../lib/jquery.d.ts'); // from source
 }
 
-export function getJavaScriptMode(documentRegions: LanguageModelCache<HTMLDocumentRegions>, workspace: Workspace): LanguageMode {
+export function getJavaScriptMode(documentRegions: LanguageModelCache<HTMLDocumentRegions>): LanguageMode {
 	let jsDocuments = getLanguageModelCache<TextDocument>(10, 60, document => documentRegions.get(document).getEmbeddedDocument('javascript'));
 
 	let compilerOptions: ts.CompilerOptions = { allowNonTsExtensions: true, allowJs: true, lib: ['lib.es6.d.ts'], target: ts.ScriptTarget.Latest, moduleResolution: ts.ModuleResolutionKind.Classic };
diff --git a/extensions/html-language-features/server/src/modes/languageModes.ts b/extensions/html-language-features/server/src/modes/languageModes.ts
index e0e81828dc3..fc0b961065c 100644
--- a/extensions/html-language-features/server/src/modes/languageModes.ts
+++ b/extensions/html-language-features/server/src/modes/languageModes.ts
@@ -80,7 +80,7 @@ export function getLanguageModes(supportedLanguages: { [languageId: string]: boo
 		modes['css'] = getCSSMode(documentRegions, workspace);
 	}
 	if (supportedLanguages['javascript']) {
-		modes['javascript'] = getJavaScriptMode(documentRegions, workspace);
+		modes['javascript'] = getJavaScriptMode(documentRegions);
 	}
 	return {
 		getModeAtPosition(document: TextDocument, position: Position): LanguageMode | undefined {
diff --git a/extensions/html-language-features/server/src/modes/pathCompletion.ts b/extensions/html-language-features/server/src/modes/pathCompletion.ts
index 5b943ff2392..41df679ac28 100644
--- a/extensions/html-language-features/server/src/modes/pathCompletion.ts
+++ b/extensions/html-language-features/server/src/modes/pathCompletion.ts
@@ -19,7 +19,7 @@ export function getPathCompletionParticipant(
 	result: CompletionItem[]
 ): ICompletionParticipant {
 	return {
-		onHtmlAttributeValue: ({ tag, position, attribute, value: valueBeforeCursor, range }) => {
+		onHtmlAttributeValue: ({ tag, attribute, value: valueBeforeCursor, range }) => {
 			const fullValue = stripQuotes(document.getText(range));
 
 			if (shouldDoPathCompletion(tag, attribute, fullValue)) {
@@ -145,6 +145,7 @@ function resolveWorkspaceRoot(activeDoc: TextDocument, workspaceFolders: Workspa
 			return path.resolve(URI.parse(workspaceFolders[i].uri).fsPath);
 		}
 	}
+	return undefined;
 }
 
 function shiftPosition(pos: Position, offset: number): Position {
diff --git a/extensions/html-language-features/server/src/test/completions.test.ts b/extensions/html-language-features/server/src/test/completions.test.ts
index 98a508e2054..2129433b567 100644
--- a/extensions/html-language-features/server/src/test/completions.test.ts
+++ b/extensions/html-language-features/server/src/test/completions.test.ts
@@ -21,7 +21,7 @@ export interface ItemDescription {
 	notAvailable?: boolean;
 }
 
-export function assertCompletion(completions: CompletionList, expected: ItemDescription, document: TextDocument, offset: number) {
+export function assertCompletion(completions: CompletionList, expected: ItemDescription, document: TextDocument) {
 	let matches = completions.items.filter(completion => {
 		return completion.label === expected.label;
 	});
@@ -70,7 +70,7 @@ export function testCompletionFor(value: string, expected: { count?: number, ite
 	}
 	if (expected.items) {
 		for (let item of expected.items) {
-			assertCompletion(list, item, document, offset);
+			assertCompletion(list, item, document);
 		}
 	}
 }
@@ -296,7 +296,7 @@ suite('HTML Path Completion', () => {
 			]
 		}, indexHtmlUri, [fixtureWorkspace]);
 	});
-	
+
 	test('Completion should ignore files/folders starting with dot', () => {
 		testCompletionFor('<script src="./|"', {
 			count: 3
diff --git a/extensions/html-language-features/server/src/utils/runner.ts b/extensions/html-language-features/server/src/utils/runner.ts
index 69f278d8a2c..c5ff319f78f 100644
--- a/extensions/html-language-features/server/src/utils/runner.ts
+++ b/extensions/html-language-features/server/src/utils/runner.ts
@@ -19,7 +19,7 @@ export function formatError(message: string, err: any): string {
 }
 
 export function runSafeAsync<T>(func: () => Thenable<T>, errorVal: T, errorMessage: string, token: CancellationToken): Thenable<T | ResponseError<any>> {
-	return new Promise<T | ResponseError<any>>((resolve, reject) => {
+	return new Promise<T | ResponseError<any>>((resolve) => {
 		setImmediate(() => {
 			if (token.isCancellationRequested) {
 				resolve(cancelValue());
@@ -40,7 +40,7 @@ export function runSafeAsync<T>(func: () => Thenable<T>, errorVal: T, errorMessa
 }
 
 export function runSafe<T, E>(func: () => T, errorVal: T, errorMessage: string, token: CancellationToken): Thenable<T | ResponseError<E>> {
-	return new Promise<T | ResponseError<E>>((resolve, reject) => {
+	return new Promise<T | ResponseError<E>>((resolve) => {
 		setImmediate(() => {
 			if (token.isCancellationRequested) {
 				resolve(cancelValue());
diff --git a/extensions/html-language-features/server/tsconfig.json b/extensions/html-language-features/server/tsconfig.json
index d686a26b803..3203105c05c 100644
--- a/extensions/html-language-features/server/tsconfig.json
+++ b/extensions/html-language-features/server/tsconfig.json
@@ -1,16 +1,9 @@
 {
+	"extends": "../../shared.tsconfig.json",
 	"compilerOptions": {
-		"target": "es5",
-		"module": "commonjs",
-		"outDir": "./out",
-		"noUnusedLocals": true,
-		"sourceMap": true,
-		"lib": [
-			"es5", "es2015.promise"
-		],
-		"strict": true
+		"outDir": "./out"
 	},
 	"include": [
-		"src"
+		"src/**/*"
 	]
 }
\ No newline at end of file