I successfully get the exact same code <script>alert('HackThis!!');</script>
in the source page as the chanllenge required and get a pop up dialogue but it still shows that my answer is invalid, just want to know why? Maybe a hint. THX
Even if your injection seems to be working, this level can’t handle all of the possible ways to get it done. Just try something else similar, you’re really close. A lot of challengers have encountered this issue on that level, you’re not the only one.