NGINX - Regex - Search entire location for non alphanumeric

Question

I have the following regex in my vhost conf:

location ~* ^/!/[^a-zA-Z0-9] {
    return 301 $scheme://$http_host;
}

But it only appears to match the first character:

# Redirects to https://shouttag.com correctly
https://shouttag.com/!/!pink

# Does not redirect as expected
https://shouttag.com/!/p!nk

Variations I have tried:

# Assume that $ is unnecessary b/c I don't know what the end of the url may be
location ~* ^/!/[^a-zA-Z0-9]$ {

# Only seems to work when capturing data via group syntax ()
location ~* ^/!/[^a-zA-Z0-9]+ {

Thanks.

Answer 1

You can try this rule:

location ~ ^/!/[a-zA-Z0-9]*[^a-zA-Z0-9].*$ {
    return 301 $scheme://$http_host;
}