Method handleProductionChange

fixtures/dom/src/components/Header.js:24–31

(event)

    window.location.search = stringify(query);
  }
  handleProductionChange(event) {
    const query = parse(window.location.search);
    query.production = event.target.checked;
    if (!query.production) {
      delete query.production;
    }
    window.location.search = stringify(query);
  }
  handleFixtureChange(event) {
    window.location.pathname = event.target.value;
  }