---
title: "PreloadInjection"
description: "Injects a preload script via the Electron. (default)"
url: https://docs.sentry.io/platforms/javascript/guides/electron/configuration/integrations/preloadinjection/
---

# PreloadInjection | Sentry for Electron

This integration injects a preload script via the Electron [`session.setPreloads(preloads)`](https://www.electronjs.org/docs/latest/api/session#sessetpreloadspreloads) API.

By default, sessions are only injected into the `defaultSession`. If you're using other sessions, you can pass a function as `getSessions` to `init`.

```javascript
import { session } from "electron";
import * as Sentry from "@sentry/electron/main";

Sentry.init({
  dsn: "___PUBLIC_DSN___",
  getSessions: () => [
    session.defaultSession,
    session.fromPartition("persist:my-session"),
  ],
});
```