In Playwright, if you want to navigate to a page, the primary method available is `goto()`. However, there are scenarios where you may need to switch the protocol. When you enter a URL in the browser, it internally determines the appropriate protocol to use and navigates accordingly. In Playwright, the situation can be a bit different. To handle such edge cases, you need to check the protocol being used and manage the navigation to the correct URL yourself. Unlike the browser's address bar, which intelligently decides whether to navigate to a domain or search for a string, Playwright requires you to specify the exact URL or domain for testing purposes.

It's interesting to note that the browser differentiates between a domain and a simple string when navigating. If it recognizes the input as a domain, it may return a "404 Not Found" error, while if it identifies it as a string, it directs you to the search engine page. This internal logic helps provide the best possible outcomes during navigation.