bug: Prevent calling isInternal when not in the browser

src/util/isInternal.ts

@@ -1,7 +1,12 @@
+const isBrowser = typeof window !== 'undefined';
+
 /**
  * Returns true if we are currently recording an internal to Sentry replay
  * (e.g. on https://sentry.io )
  */
 export function isInternal() {
-  return ['sentry.io', 'dev.getsentry.net'].includes(window.location.host);
+  return (
+    isBrowser &&
+    ['sentry.io', 'dev.getsentry.net'].includes(window.location.host)
+  );
 }