diff --git a/src/ProcessManagerWindow.js b/src/ProcessManagerWindow.js
index 842a1f4..ee0843c 100644
--- a/src/ProcessManagerWindow.js
+++ b/src/ProcessManagerWindow.js
@@ -10,6 +10,7 @@ class ProcessManagerWindow extends BrowserWindow {
       height: 300,
       useContentSize: true,
       webPreferences: {
+        contextIsolation: true,
         nodeIntegration: true,
         webviewTag: true,
       }