We have witnessed a huge expansion of web applications in the last decade. Traditional desktop applications are slowly losing the pace, as more and more software solutions are implemented as web applications, with the backend server and the client access through web browser on their machine. Web applications today are offering a wide spectrum of public, business and entertainment services, and they are designed to be used by human users, which implies certain level of quality and user

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... n. Although web applications are efficient and convenient in most cases, their testing is still sometimes neglected and performed in inappropriate way. This paper will present challenges in web applications testing and review testing techniques and approaches which are considered to be state of the art, with focus on the techniques observable on the frontend.