I don’t think the OP added a comment. I believe the first line only gets added when you use the ask for help button to help us know which file we are reviewing.
(So the code is everything below that line)
The code looks correct to me but perhaps there is a browser extension that is preventing it from passing. I usually use Chrome with minimal extensions added.
Perhaps you can to use a new browser or you can also try to restart the step to see if a second fresh try will give a better result.