web - set a panel as default that exists

src/vs/workbench/contrib/debug/electron-browser/debug.contribution.ts

@@ -33,7 +33,7 @@ import { registerCommands, ADD_CONFIGURATION_ID, TOGGLE_INLINE_BREAKPOINT_ID, CO
 import { IQuickOpenRegistry, Extensions as QuickOpenExtensions, QuickOpenHandlerDescriptor } from 'vs/workbench/browser/quickopen';
 import { StatusBarColorProvider } from 'vs/workbench/contrib/debug/browser/statusbarColorProvider';
 import { IViewsRegistry, Extensions as ViewExtensions } from 'vs/workbench/common/views';
-import { isMacintosh } from 'vs/base/common/platform';
+import { isMacintosh, isNative } from 'vs/base/common/platform';
 import { ContextKeyExpr } from 'vs/platform/contextkey/common/contextkey';
 import { URI } from 'vs/base/common/uri';
 import { DebugViewlet } from 'vs/workbench/contrib/debug/browser/debugViewlet';
@@ -103,7 +103,9 @@ Registry.as<PanelRegistry>(PanelExtensions.Panels).registerPanel(new PanelDescri
 	30,
 	OpenDebugPanelAction.ID
 ));
-Registry.as<PanelRegistry>(PanelExtensions.Panels).setDefaultPanelId(REPL_ID);
+if (isNative) {
+	Registry.as<PanelRegistry>(PanelExtensions.Panels).setDefaultPanelId(REPL_ID);
+}
 
 // Register default debug views
 const viewsRegistry = Registry.as<IViewsRegistry>(ViewExtensions.ViewsRegistry);

src/vs/workbench/contrib/terminal/browser/terminal.contribution.ts

@@ -294,6 +294,10 @@ actionBarRegistry.registerActionBarContributor(Scope.VIEWER, QuickOpenActionTerm
 	40,
 	TERMINAL_COMMAND_ID.TOGGLE
 ));
+if (platform.isWeb) {
+	// TODO@ben revisit if this should be consistent
+	Registry.as<panel.PanelRegistry>(panel.Extensions.Panels).setDefaultPanelId(TERMINAL_PANEL_ID);
+}
 
 // On mac cmd+` is reserved to cycle between windows, that's why the keybindings use WinCtrl
 const category = nls.localize('terminalCategory', "Terminal");