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docs: mention contextIsolation in ipc-main example (#29918)

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Jeremy Rose
2021-07-06 10:27:35 -07:00
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docs/api/ipc-main.md
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@@ -40,6 +40,8 @@ ipcMain.on('synchronous-message', (event, arg) => {
```javascript
// In renderer process (web page).
// NB. Electron APIs are only accessible from preload, unless contextIsolation is disabled.
// See https://www.electronjs.org/docs/tutorial/process-model#preload-scripts for more details.
const { ipcRenderer } = require('electron')
console.log(ipcRenderer.sendSync('synchronous-message', 'ping')) // prints "pong"