# Plugins in old browsers

Kiosk Shell version 1 uses the Edge Legacy (version 18) browser.
Plugins are not supported out of the box in Edge 18, but with some modifications, a subset of plugin features can be made to work.

Note: Page and block components are not supported in Edge 18 because Web Components support is required.

## Modifications to boiler plate project

The following changes are required to make the [Frontend Plugin Boilerplate](https://github.com/Future-Ordering/frontend-plugin-boilerplate) ompatible with Edge 18.

1. Edit build.mjs, add a property to the `buildArgs` object:
 
```ts
target: 'edge18'
```

2. Edit plugin code, remove `export default` and replace it with:
 
```ts
async function main(context: Context) {
    // ...
};

(window as any).plugins.myPlugin = main;
```
 
3. Add a property to `manifest.json`:
```json
"esm": false
```