All Inertia requests must receive a valid Inertia response, however a plain JSON response was received.

How can I return normal data to my Vue component?

  methods: {
    refresh() {
      this.$inertia.get('/tenants/table_data', {
         onSuccess: page => { this.tenants = page.props.tableData},
      });
    },
  },
mounted() {
    this.refresh();
  },

    public function tableData(Request $request) {
        return response()->json(['tableData' => Tenant::all()]);
    }