Updated the files.

my-app/node_modules/rxjs/dist/esm/internal/BehaviorSubject.js

@@ -0,0 +1,27 @@
+import { Subject } from './Subject';
+export class BehaviorSubject extends Subject {
+    constructor(_value) {
+        super();
+        this._value = _value;
+    }
+    get value() {
+        return this.getValue();
+    }
+    _subscribe(subscriber) {
+        const subscription = super._subscribe(subscriber);
+        !subscription.closed && subscriber.next(this._value);
+        return subscription;
+    }
+    getValue() {
+        const { hasError, thrownError, _value } = this;
+        if (hasError) {
+            throw thrownError;
+        }
+        this._throwIfClosed();
+        return _value;
+    }
+    next(value) {
+        super.next((this._value = value));
+    }
+}
+//# sourceMappingURL=BehaviorSubject.js.map