Enable contextIsolation on webviews

frontend/ts/index.ts

@@ -466,6 +466,10 @@ function loadService(serviceId: number, service: any) {
         service.view.setAttribute('autosize', 'true');
         service.view.setAttribute('src', emptyPage);
 
+        // Enable context isolation. This is currently not used as there is no preload script; however it could prevent
+        // eventual future human mistakes.
+        service.view.setAttribute('webpreferences', 'contextIsolation=yes');
+
         // Append element to DOM
         document.querySelector('#services')?.appendChild(service.view);
 

src/windows/MainWindow.ts

@@ -110,7 +110,7 @@ export default class MainWindow extends Window {
                 this.serviceSettingsWindow.setup();
                 this.serviceSettingsWindow.onClose(() => {
                     this.serviceSettingsWindow = undefined;
-                })
+                });
             }
         });