# Suppress GCal Alerts

A minimal Chrome extension that silences `window.alert()` calls on Google Calendar.

## Files

- `manifest.json` — extension configuration
- `background.js` — registers the content script into the page's main JS context
- `suppress.js` — overrides `window.alert` with a no-op

## Installation

1. Clone or download this folder.
2. Go to `chrome://extensions` and enable Developer mode.
3. Click "Load unpacked" and select this folder.

## Notes

The script must run in the `MAIN` world (the page's own JS context) to override `window.alert` effectively. Declaring `world: "MAIN"` in `manifest.json` has a known Chrome bug and does not work reliably, so the content script is registered programmatically from the service worker instead.