electron/lib/renderer/api/context-bridge.ts

const { hasSwitch } = process.electronBinding('command_line');
const binding = process.electronBinding('context_bridge');

const contextIsolationEnabled = hasSwitch('context-isolation');

const checkContextIsolationEnabled = () => {
  if (!contextIsolationEnabled) throw new Error('contextBridge API can only be used when contextIsolation is enabled');
};

const contextBridge = {
  exposeInMainWorld: (key: string, api: Record<string, any>) => {
    checkContextIsolationEnabled();
    return binding.exposeAPIInMainWorld(key, api);
  },
  debugGC: () => binding._debugGCMaps({})
};

if (!binding._debugGCMaps) delete contextBridge.debugGC;

export default contextBridge;