diff --git a/src/browser/client.ts b/src/browser/client.ts
index 677ea9b812538c635bc4c8ed579314473080f0fb..47d70baa7f45b9cb2203ecb3caa2b7fa31c71c1b 100644
--- a/src/browser/client.ts
+++ b/src/browser/client.ts
@@ -3,15 +3,16 @@ import { URI } from "vs/base/common/uri";
 import { registerSingleton } from "vs/platform/instantiation/common/extensions";
 import { ServiceCollection } from "vs/platform/instantiation/common/serviceCollection";
 import { ILocalizationsService } from "vs/platform/localizations/common/localizations";
-import { LocalizationsService } from "vs/workbench/services/localizations/electron-browser/localizationsService";
+import { PersistentConnectionEventType } from "vs/platform/remote/common/remoteAgentConnection";
 import { ITelemetryService } from "vs/platform/telemetry/common/telemetry";
 import { coderApi, vscodeApi } from "vs/server/src/browser/api";
 import { IUploadService, UploadService } from "vs/server/src/browser/upload";
 import { INodeProxyService, NodeProxyChannelClient } from "vs/server/src/common/nodeProxy";
 import { TelemetryChannelClient } from "vs/server/src/common/telemetry";
+import { split } from "vs/server/src/common/util";
 import "vs/workbench/contrib/localizations/browser/localizations.contribution";
+import { LocalizationsService } from "vs/workbench/services/localizations/electron-browser/localizationsService";
 import { IRemoteAgentService } from "vs/workbench/services/remote/common/remoteAgentService";
-import { PersistentConnectionEventType } from "vs/platform/remote/common/remoteAgentConnection";
 
 class TelemetryService extends TelemetryChannelClient {
 	public constructor(
@@ -79,7 +80,7 @@ export const withQuery = (url: string, replace: Query): string => {
 	const uri = URI.parse(url);
 	const query = { ...replace };
 	uri.query.split("&").forEach((kv) => {
-		const [key, value] = kv.split("=", 2);
+		const [key, value] = split(kv, "=");
 		if (!(key in query)) {
 			query[key] = value;
 		}
diff --git a/src/common/util.ts b/src/common/util.ts
new file mode 100644
index 0000000000000000000000000000000000000000..9be7dbe763ee7cbffa9c4450f61856f0ca808652
--- /dev/null
+++ b/src/common/util.ts
@@ -0,0 +1,10 @@
+/**
+ * Split a string up to the delimiter. If the delimiter doesn't exist the first
+ * item will have all the text and the second item will be an empty string.
+ */
+export const split = (str: string, delimiter: string): [string, string] => {
+	const index = str.indexOf(delimiter);
+	return index !== -1
+		? [str.substring(0, index).trim(), str.substring(index + 1)]
+		: [str, ""];
+};
diff --git a/src/node/server.ts b/src/node/server.ts
index ed96fbcec589fa8ce312d3ebb9a7dcb6a76c9049..4be670618242d262a2b9ac6d8583612c2c3848a9 100644
--- a/src/node/server.ts
+++ b/src/node/server.ts
@@ -56,6 +56,7 @@ import { resolveCommonProperties } from "vs/platform/telemetry/node/commonProper
 import { UpdateChannel } from "vs/platform/update/electron-main/updateIpc";
 import { INodeProxyService, NodeProxyChannel } from "vs/server/src/common/nodeProxy";
 import { TelemetryChannel } from "vs/server/src/common/telemetry";
+import { split } from "vs/server/src/common/util";
 import { ExtensionEnvironmentChannel, FileProviderChannel, NodeProxyService } from "vs/server/src/node/channel";
 import { Connection, ExtensionHostConnection, ManagementConnection } from "vs/server/src/node/connection";
 import { TelemetryClient } from "vs/server/src/node/insights";
@@ -212,8 +213,8 @@ export abstract class Server {
 	}
 
 	protected withBase(request: http.IncomingMessage, path: string): string {
-		const split = request.url ? request.url.split("?", 2) : [];
-		return `${this.protocol}://${request.headers.host}${this.options.basePath}${path}${split.length === 2 ? `?${split[1]}` : ""}`;
+		const [, query] = request.url ? split(request.url, "?") : [];
+		return `${this.protocol}://${request.headers.host}${this.options.basePath}${path}${query ? `?${query}` : ""}`;
 	}
 
 	private isAllowedRequestPath(path: string): boolean {
@@ -440,11 +441,8 @@ export abstract class Server {
 		const cookies: { [key: string]: string } = {};
 		if (request.headers.cookie) {
 			request.headers.cookie.split(";").forEach((keyValue) => {
-				// key=value -> { [key]: value } and key -> { [key]: "" }
-				const index = keyValue.indexOf("=");
-				const key = keyValue.substring(0, index).trim();
-				const value = keyValue.substring(index + 1);
-				cookies[key || value] = decodeURI(key ? value : "");
+				const [key, value] = split(keyValue, "=");
+				cookies[key] = decodeURI(value);
 			});
 		}
 		return cookies as T;