Fix ext host terminal

src/vs/workbench/api/electron-browser/mainThreadTerminalService.ts

@@ -12,6 +12,7 @@ import { extHostNamedCustomer } from 'vs/workbench/api/electron-browser/extHostC
 export class MainThreadTerminalService implements MainThreadTerminalServiceShape {
 
 	private _proxy: ExtHostTerminalServiceShape;
+	private _remoteAuthority: string | null;
 	private _toDispose: IDisposable[] = [];
 	private _terminalProcesses: { [id: number]: ITerminalProcessExtHostProxy } = {};
 	private _terminalOnDidWriteDataListeners: { [id: number]: IDisposable } = {};
@@ -22,6 +23,7 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 		@ITerminalService private readonly terminalService: ITerminalService
 	) {
 		this._proxy = extHostContext.getProxy(ExtHostContext.ExtHostTerminalService);
+		this._remoteAuthority = extHostContext.remoteAuthority;
 		this._toDispose.push(terminalService.onInstanceCreated((instance) => {
 			// Delay this message so the TerminalInstance constructor has a chance to finish and
 			// return the ID normally to the extension host. The ID that is passed here will be used
@@ -202,6 +204,11 @@ export class MainThreadTerminalService implements MainThreadTerminalServiceShape
 	}
 
 	private _onTerminalRequestExtHostProcess(request: ITerminalProcessExtHostRequest): void {
+		// Only allow processes on remote ext hosts
+		if (!this._remoteAuthority) {
+			return;
+		}
+
 		this._terminalProcesses[request.proxy.terminalId] = request.proxy;
 		const shellLaunchConfigDto: ShellLaunchConfigDto = {
 			name: request.shellLaunchConfig.name,