Puppeteer Real Browser MCP Server

Using the puppeteer-test-server MCP server, please test error handling: 1. Initialize a browser 2. Try to click on a non-existent element with selector "#this-element-does-not-exist" 3. Try to navigate to an invalid URL "https://this-is-not-a-valid-domain-12345.com" 4. Try to take a screenshot after closing the browser 5. Report how each error is handled 6. Note if retry mechanisms engage 7. Check if error messages are helpful and specific