fix(replay): Allow Replay to be used in Electron renderers with nodeIntegration enabled (#6644)

Author: timfish

packages/replay/src/integration.ts

@@ -127,7 +127,7 @@ Sentry.init({ replaysOnErrorSampleRate: ${errorSampleRate} })`,
         : `${this.recordingOptions.blockSelector},${MEDIA_SELECTORS}`;
     }
 
-    if (isBrowser() && this._isInitialized) {
+    if (this._isInitialized && isBrowser()) {
       throw new Error('Multiple Sentry Session Replay instances are not supported');
     }
 

packages/replay/src/util/isBrowser.ts

@@ -2,5 +2,12 @@ import { isNodeEnv } from '@sentry/utils';
 
 export function isBrowser(): boolean {
   // eslint-disable-next-line no-restricted-globals
-  return typeof window !== 'undefined' && !isNodeEnv();
+  return typeof window !== 'undefined' && (!isNodeEnv() || isElectronNodeRenderer());
+}
+
+type ElectronProcess = { type?: string };
+
+// Electron renderers with nodeIntegration enabled are detected as Node.js so we specifically test for them
+function isElectronNodeRenderer(): boolean {
+  return typeof process !== 'undefined' && (process as ElectronProcess).type === 'renderer';
 }