===== nginx <location> =====


<code>
location optional_modifier location_match {
    . . .
}
</code>


  * 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.



https://www.digitalocean.com/community/tutorials/understanding-nginx-server-and-location-block-selection-algorithms