diff --git a/extensions/json/server/package.json b/extensions/json/server/package.json
index 3b6e892cc42..d1ece9575d2 100644
--- a/extensions/json/server/package.json
+++ b/extensions/json/server/package.json
@@ -13,7 +13,8 @@
     "vscode-json-languageservice": "^2.0.16",
     "vscode-languageserver": "3.4.0-next.6",
     "vscode-languageserver-protocol": "^3.1.1",
-    "vscode-nls": "^2.0.2"
+    "vscode-nls": "^2.0.2",
+    "vscode-uri": "^1.0.1"
   },
   "devDependencies": {
     "@types/node": "^6.0.51"
diff --git a/extensions/json/server/src/jsonServerMain.ts b/extensions/json/server/src/jsonServerMain.ts
index 2fe428f717f..183d633ab7a 100644
--- a/extensions/json/server/src/jsonServerMain.ts
+++ b/extensions/json/server/src/jsonServerMain.ts
@@ -15,7 +15,7 @@ import { DocumentColorRequest, ServerCapabilities as CPServerCapabilities } from
 import { xhr, XHRResponse, configure as configureHttpRequests, getErrorStatusDescription } from 'request-light';
 import path = require('path');
 import fs = require('fs');
-import URI from './utils/uri';
+import URI from 'vscode-uri';
 import * as URL from 'url';
 import Strings = require('./utils/strings');
 import { JSONDocument, JSONSchema, LanguageSettings, getLanguageService } from 'vscode-json-languageservice';
diff --git a/extensions/json/server/src/utils/uri.ts b/extensions/json/server/src/utils/uri.ts
deleted file mode 100644
index 5cce7590977..00000000000
--- a/extensions/json/server/src/utils/uri.ts
+++ /dev/null
@@ -1,351 +0,0 @@
-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-'use strict';
-
-function _encode(ch: string): string {
-	return '%' + ch.charCodeAt(0).toString(16).toUpperCase();
-}
-
-// see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent
-function encodeURIComponent2(str: string): string {
-	return encodeURIComponent(str).replace(/[!'()*]/g, _encode);
-}
-
-function encodeNoop(str: string): string {
-	return str;
-}
-
-
-/**
- * Uniform Resource Identifier (URI) http://tools.ietf.org/html/rfc3986.
- * This class is a simple parser which creates the basic component paths
- * (http://tools.ietf.org/html/rfc3986#section-3) with minimal validation
- * and encoding.
- *
- *       foo://example.com:8042/over/there?name=ferret#nose
- *       \_/   \______________/\_________/ \_________/ \__/
- *        |           |            |            |        |
- *     scheme     authority       path        query   fragment
- *        |   _____________________|__
- *       / \ /                        \
- *       urn:example:animal:ferret:nose
- *
- *
- */
-export default class URI {
-
-	private static _empty = '';
-	private static _slash = '/';
-	private static _regexp = /^(([^:/?#]+?):)?(\/\/([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/;
-	private static _driveLetterPath = /^\/[a-zA-z]:/;
-	private static _upperCaseDrive = /^(\/)?([A-Z]:)/;
-
-	private _scheme: string;
-	private _authority: string;
-	private _path: string;
-	private _query: string;
-	private _fragment: string;
-	private _formatted: string;
-	private _fsPath: string;
-
-	constructor() {
-		this._scheme = URI._empty;
-		this._authority = URI._empty;
-		this._path = URI._empty;
-		this._query = URI._empty;
-		this._fragment = URI._empty;
-
-		this._formatted = null;
-		this._fsPath = null;
-	}
-
-	/**
-	 * scheme is the 'http' part of 'http://www.msft.com/some/path?query#fragment'.
-	 * The part before the first colon.
-	 */
-	get scheme() {
-		return this._scheme;
-	}
-
-	/**
-	 * authority is the 'www.msft.com' part of 'http://www.msft.com/some/path?query#fragment'.
-	 * The part between the first double slashes and the next slash.
-	 */
-	get authority() {
-		return this._authority;
-	}
-
-	/**
-	 * path is the '/some/path' part of 'http://www.msft.com/some/path?query#fragment'.
-	 */
-	get path() {
-		return this._path;
-	}
-
-	/**
-	 * query is the 'query' part of 'http://www.msft.com/some/path?query#fragment'.
-	 */
-	get query() {
-		return this._query;
-	}
-
-	/**
-	 * fragment is the 'fragment' part of 'http://www.msft.com/some/path?query#fragment'.
-	 */
-	get fragment() {
-		return this._fragment;
-	}
-
-	// ---- filesystem path -----------------------
-
-	/**
-	 * Returns a string representing the corresponding file system path of this URI.
-	 * Will handle UNC paths and normalize windows drive letters to lower-case. Also
-	 * uses the platform specific path separator. Will *not* validate the path for
-	 * invalid characters and semantics. Will *not* look at the scheme of this URI.
-	 */
-	get fsPath() {
-		if (!this._fsPath) {
-			var value: string;
-			if (this._authority && this.scheme === 'file') {
-				// unc path: file://shares/c$/far/boo
-				value = `//${this._authority}${this._path}`;
-			} else if (URI._driveLetterPath.test(this._path)) {
-				// windows drive letter: file:///c:/far/boo
-				value = this._path[1].toLowerCase() + this._path.substr(2);
-			} else {
-				// other path
-				value = this._path;
-			}
-			if (process.platform === 'win32') {
-				value = value.replace(/\//g, '\\');
-			}
-			this._fsPath = value;
-		}
-		return this._fsPath;
-	}
-
-	// ---- modify to new -------------------------
-
-	public with(scheme: string, authority: string, path: string, query: string, fragment: string): URI {
-		var ret = new URI();
-		ret._scheme = scheme || this.scheme;
-		ret._authority = authority || this.authority;
-		ret._path = path || this.path;
-		ret._query = query || this.query;
-		ret._fragment = fragment || this.fragment;
-		URI._validate(ret);
-		return ret;
-	}
-
-	public withScheme(value: string): URI {
-		return this.with(value, undefined, undefined, undefined, undefined);
-	}
-
-	public withAuthority(value: string): URI {
-		return this.with(undefined, value, undefined, undefined, undefined);
-	}
-
-	public withPath(value: string): URI {
-		return this.with(undefined, undefined, value, undefined, undefined);
-	}
-
-	public withQuery(value: string): URI {
-		return this.with(undefined, undefined, undefined, value, undefined);
-	}
-
-	public withFragment(value: string): URI {
-		return this.with(undefined, undefined, undefined, undefined, value);
-	}
-
-	// ---- parse & validate ------------------------
-
-	public static parse(value: string): URI {
-		const ret = new URI();
-		const data = URI._parseComponents(value);
-		ret._scheme = data.scheme;
-		ret._authority = decodeURIComponent(data.authority);
-		ret._path = decodeURIComponent(data.path);
-		ret._query = decodeURIComponent(data.query);
-		ret._fragment = decodeURIComponent(data.fragment);
-		URI._validate(ret);
-		return ret;
-	}
-
-	public static file(path: string): URI {
-
-		const ret = new URI();
-		ret._scheme = 'file';
-
-		// normalize to fwd-slashes
-		path = path.replace(/\\/g, URI._slash);
-
-		// check for authority as used in UNC shares
-		// or use the path as given
-		if (path[0] === URI._slash && path[0] === path[1]) {
-			let idx = path.indexOf(URI._slash, 2);
-			if (idx === -1) {
-				ret._authority = path.substring(2);
-			} else {
-				ret._authority = path.substring(2, idx);
-				ret._path = path.substring(idx);
-			}
-		} else {
-			ret._path = path;
-		}
-
-		// Ensure that path starts with a slash
-		// or that it is at least a slash
-		if (ret._path[0] !== URI._slash) {
-			ret._path = URI._slash + ret._path;
-		}
-
-		URI._validate(ret);
-
-		return ret;
-	}
-
-	private static _parseComponents(value: string): UriComponents {
-
-		const ret: UriComponents = {
-			scheme: URI._empty,
-			authority: URI._empty,
-			path: URI._empty,
-			query: URI._empty,
-			fragment: URI._empty,
-		};
-
-		const match = URI._regexp.exec(value);
-		if (match) {
-			ret.scheme = match[2] || ret.scheme;
-			ret.authority = match[4] || ret.authority;
-			ret.path = match[5] || ret.path;
-			ret.query = match[7] || ret.query;
-			ret.fragment = match[9] || ret.fragment;
-		}
-		return ret;
-	}
-
-	public static create(scheme?: string, authority?: string, path?: string, query?: string, fragment?: string): URI {
-		return new URI().with(scheme, authority, path, query, fragment);
-	}
-
-	private static _validate(ret: URI): void {
-
-		// validation
-		// path, http://tools.ietf.org/html/rfc3986#section-3.3
-		// If a URI contains an authority component, then the path component
-		// must either be empty or begin with a slash ("/") character.  If a URI
-		// does not contain an authority component, then the path cannot begin
-		// with two slash characters ("//").
-		if (ret.authority && ret.path && ret.path[0] !== '/') {
-			throw new Error('[UriError]: If a URI contains an authority component, then the path component must either be empty or begin with a slash ("/") character');
-		}
-		if (!ret.authority && ret.path.indexOf('//') === 0) {
-			throw new Error('[UriError]: If a URI does not contain an authority component, then the path cannot begin with two slash characters ("//")');
-		}
-	}
-
-	// ---- printing/externalize ---------------------------
-
-	/**
-	 *
-	 * @param skipEncoding Do not encode the result, default is `false`
-	 */
-	public toString(skipEncoding: boolean = false): string {
-		if (!skipEncoding) {
-			if (!this._formatted) {
-				this._formatted = URI._asFormatted(this, false);
-			}
-			return this._formatted;
-		} else {
-			// we don't cache that
-			return URI._asFormatted(this, true);
-		}
-	}
-
-	private static _asFormatted(uri: URI, skipEncoding: boolean): string {
-
-		const encoder = !skipEncoding
-			? encodeURIComponent2
-			: encodeNoop;
-
-		const parts: string[] = [];
-
-		let { scheme, authority, path, query, fragment } = uri;
-		if (scheme) {
-			parts.push(scheme, ':');
-		}
-		if (authority || scheme === 'file') {
-			parts.push('//');
-		}
-		if (authority) {
-			authority = authority.toLowerCase();
-			let idx = authority.indexOf(':');
-			if (idx === -1) {
-				parts.push(encoder(authority));
-			} else {
-				parts.push(encoder(authority.substr(0, idx)), authority.substr(idx));
-			}
-		}
-		if (path) {
-			// lower-case windown drive letters in /C:/fff
-			const m = URI._upperCaseDrive.exec(path);
-			if (m) {
-				path = m[1] + m[2].toLowerCase() + path.substr(m[1].length + m[2].length);
-			}
-
-			// encode every segement but not slashes
-			// make sure that # and ? are always encoded
-			// when occurring in paths - otherwise the result
-			// cannot be parsed back again
-			let lastIdx = 0;
-			while (true) {
-				let idx = path.indexOf(URI._slash, lastIdx);
-				if (idx === -1) {
-					parts.push(encoder(path.substring(lastIdx)).replace(/[#?]/, _encode));
-					break;
-				}
-				parts.push(encoder(path.substring(lastIdx, idx)).replace(/[#?]/, _encode), URI._slash);
-				lastIdx = idx + 1;
-			};
-		}
-		if (query) {
-			parts.push('?', encoder(query));
-		}
-		if (fragment) {
-			parts.push('#', encoder(fragment));
-		}
-
-		return parts.join(URI._empty);
-	}
-
-	public toJSON(): any {
-		return <UriState>{
-			scheme: this.scheme,
-			authority: this.authority,
-			path: this.path,
-			fsPath: this.fsPath,
-			query: this.query,
-			fragment: this.fragment,
-			external: this.toString(),
-			$mid: 1
-		};
-	}
-}
-
-interface UriComponents {
-	scheme: string;
-	authority: string;
-	path: string;
-	query: string;
-	fragment: string;
-}
-
-interface UriState extends UriComponents {
-	$mid: number;
-	fsPath: string;
-	external: string;
-}