web - hot exit off by default for now until supported

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

@@ -311,7 +311,7 @@ configurationRegistry.registerConfiguration({
 			'type': 'string',
 			'scope': ConfigurationScope.APPLICATION,
 			'enum': [HotExitConfiguration.OFF, HotExitConfiguration.ON_EXIT, HotExitConfiguration.ON_EXIT_AND_WINDOW_CLOSE],
-			'default': HotExitConfiguration.ON_EXIT,
+			'default': platform.isWeb ? HotExitConfiguration.OFF : HotExitConfiguration.ON_EXIT, // TODO@Ben enable once supported
 			'markdownEnumDescriptions': [
 				nls.localize('hotExit.off', 'Disable hot exit.'),
 				nls.localize('hotExit.onExit', 'Hot exit will be triggered when the last window is closed on Windows/Linux or when the `workbench.action.quit` command is triggered (command palette, keybinding, menu). All windows with backups will be restored upon next launch.'),