Nginx location blocks syntax

Question

I'm trying to return 400 status if someone includes this character '<' anywhere in the url request, for example the request might look like

https://example.com/adfg<script

I tried the following in Nginx location block, but obviously this is not how it works,

location /*<* {
      return 400;
}

What's the right syntax that i need to write please.

Answer 1

"<" characters is not allowed in a url. Therefore you can't use it, maybe you want to use the url encoded version: "%3C".

Check: Characters allowed in a URL