dcai

nginx <location>

location optional_modifier location_match {
    . . .
}

If no modifiers are present, the location is interpreted as a prefix match.
=: If an equal sign is used, this block will be considered a match if the request URI exactly matches the location given.
~: If a tilde modifier is present, this location will be interpreted as a case-sensitive regular expression match.
~*: If a tilde and asterisk modifier is used, the location block will be interpreted as a case-insensitive regular expression match.
^~: If a carat and tilde modifier is present, and if this block is selected as the best non-regular expression match, regular expression matching will not take place.