How to debug a web app with Playwright MCP and GitHub Copilot

GitHub Copilot, in conjunction with the Playwright Model Context Protocol (MCP) server, offers a streamlined solution for automating bug reproduction and validation in web applications. By utilizing Playwright, an end-to-end testing framework, Copilot can simulate user interactions to identify and address issues, such as a non-functioning publisher filter on a crowdfunding website for DevOps-themed board games. The integration enables Copilot to execute repro steps, confirm reported bugs, and propose fixes by examining both frontend and backend code. This process was illustrated through a demo where Copilot identified a simple backend typo causing the bug and validated the fix using Playwright. The collaboration between Copilot and Playwright not only accelerates debugging but also enhances the accuracy of solutions, with the potential for further efficiency by incorporating Playwright end-to-end tests into projects.

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