diff --git a/src/vs/base/browser/dom.ts b/src/vs/base/browser/dom.ts
index 28fbfc82f45..2b42d7f00a2 100644
--- a/src/vs/base/browser/dom.ts
+++ b/src/vs/base/browser/dom.ts
@@ -1193,7 +1193,7 @@ export function asDomUri(uri: URI): URI {
 		return uri;
 	}
 	if (Schemas.vscodeRemote === uri.scheme) {
-		return RemoteAuthorities.rewrite(uri.authority, uri.path);
+		return RemoteAuthorities.rewrite(uri);
 	}
 	return uri;
 }
diff --git a/src/vs/base/common/network.ts b/src/vs/base/common/network.ts
index 4f93e06df0b..01c7df0fdda 100644
--- a/src/vs/base/common/network.ts
+++ b/src/vs/base/common/network.ts
@@ -3,7 +3,7 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-import { URI } from 'vs/base/common/uri';
+import { URI, UriComponents } from 'vs/base/common/uri';
 import * as platform from 'vs/base/common/platform';
 
 export namespace Schemas {
@@ -60,18 +60,24 @@ class RemoteAuthoritiesImpl {
 	private readonly _ports: { [authority: string]: number; };
 	private readonly _connectionTokens: { [authority: string]: string; };
 	private _preferredWebSchema: 'http' | 'https';
+	private _delegate: ((uri: URI) => UriComponents) | null;
 
 	constructor() {
 		this._hosts = Object.create(null);
 		this._ports = Object.create(null);
 		this._connectionTokens = Object.create(null);
 		this._preferredWebSchema = 'http';
+		this._delegate = null;
 	}
 
 	public setPreferredWebSchema(schema: 'http' | 'https') {
 		this._preferredWebSchema = schema;
 	}
 
+	public setDelegate(delegate: (uri: URI) => UriComponents): void {
+		this._delegate = delegate;
+	}
+
 	public set(authority: string, host: string, port: number): void {
 		this._hosts[authority] = host;
 		this._ports[authority] = port;
@@ -81,7 +87,12 @@ class RemoteAuthoritiesImpl {
 		this._connectionTokens[authority] = connectionToken;
 	}
 
-	public rewrite(authority: string, path: string): URI {
+	public rewrite(uri: URI): URI {
+		if (this._delegate) {
+			const result = this._delegate(uri);
+			return URI.revive(result);
+		}
+		const authority = uri.authority;
 		const host = this._hosts[authority];
 		const port = this._ports[authority];
 		const connectionToken = this._connectionTokens[authority];
@@ -89,7 +100,7 @@ class RemoteAuthoritiesImpl {
 			scheme: platform.isWeb ? this._preferredWebSchema : Schemas.vscodeRemoteResource,
 			authority: `${host}:${port}`,
 			path: `/vscode-remote-resource`,
-			query: `path=${encodeURIComponent(path)}&tkn=${encodeURIComponent(connectionToken)}`
+			query: `path=${encodeURIComponent(uri.path)}&tkn=${encodeURIComponent(connectionToken)}`
 		});
 	}
 }
diff --git a/src/vs/platform/remote/browser/remoteAuthorityResolverService.ts b/src/vs/platform/remote/browser/remoteAuthorityResolverService.ts
index 17bded22f29..fa22819f880 100644
--- a/src/vs/platform/remote/browser/remoteAuthorityResolverService.ts
+++ b/src/vs/platform/remote/browser/remoteAuthorityResolverService.ts
@@ -5,12 +5,18 @@
 
 import { ResolvedAuthority, IRemoteAuthorityResolverService, ResolverResult } from 'vs/platform/remote/common/remoteAuthorityResolver';
 import { RemoteAuthorities } from 'vs/base/common/network';
+import { URI, UriComponents } from 'vs/base/common/uri';
 
 export class RemoteAuthorityResolverService implements IRemoteAuthorityResolverService {
 
 	_serviceBrand: undefined;
 
-	constructor() {
+	constructor(
+		resourceUriProvider: ((uri: URI) => UriComponents) | undefined
+	) {
+		if (resourceUriProvider) {
+			RemoteAuthorities.setDelegate(resourceUriProvider);
+		}
 	}
 
 	resolveAuthority(authority: string): Promise<ResolverResult> {
diff --git a/src/vs/workbench/browser/web.main.ts b/src/vs/workbench/browser/web.main.ts
index 7d214b18c39..bddde603d45 100644
--- a/src/vs/workbench/browser/web.main.ts
+++ b/src/vs/workbench/browser/web.main.ts
@@ -142,7 +142,7 @@ class CodeRendererMain extends Disposable {
 		serviceCollection.set(IProductService, productService);
 
 		// Remote
-		const remoteAuthorityResolverService = new RemoteAuthorityResolverService();
+		const remoteAuthorityResolverService = new RemoteAuthorityResolverService(this.configuration.resourceUriProvider);
 		serviceCollection.set(IRemoteAuthorityResolverService, remoteAuthorityResolverService);
 
 		// Signing
diff --git a/src/vs/workbench/workbench.web.api.ts b/src/vs/workbench/workbench.web.api.ts
index 845c3ac35b0..ece8a708cbb 100644
--- a/src/vs/workbench/workbench.web.api.ts
+++ b/src/vs/workbench/workbench.web.api.ts
@@ -5,7 +5,7 @@
 
 import 'vs/workbench/workbench.web.main';
 import { main } from 'vs/workbench/browser/web.main';
-import { UriComponents } from 'vs/base/common/uri';
+import { UriComponents, URI } from 'vs/base/common/uri';
 import { IFileSystemProvider } from 'vs/platform/files/common/files';
 import { IWebSocketFactory } from 'vs/platform/remote/browser/browserSocketFactory';
 import { ICredentialsProvider } from 'vs/workbench/services/credentials/browser/credentialsService';
@@ -53,6 +53,11 @@ export interface IWorkbenchConstructionOptions {
 	 */
 	webSocketFactory?: IWebSocketFactory;
 
+	/**
+	 * A provider for resource URIs.
+	 */
+	resourceUriProvider?: (uri: URI) => UriComponents;
+
 	/**
 	 * Experimental: Whether to enable the smoke test driver.
 	 */