x/pkgsite: Encountering a 500 internal server error when the search term begins with a hyphen ("-")

[raza-basit]

What is the URL of the page with the issue?

https://pkg.go.dev/search?q=-cover
https://pkg.go.dev/search?q=-http

What is your user agent?

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36

Screenshot

What did you do?

I have typed -cover in the search box and it returns a 500 internal server error.

What did you expect to see?

It should return the package listing page

What did you see instead?

I'm seeing, 500 Internal Server Error

[jba]

See https://go.dev/cl/638596.