Syntax: internal; Default: — Context: location
Specifies that a given location can only be used for internal requests. For external requests, the client error 404 (Not Found) is returned. Internal requests are the following:
requests redirected by the error_page, index, random_index, and try_files directives; requests redirected by the “X-Accel-Redirect” response header field from an upstream server; subrequests formed by the “include virtual” command of the ngx_http_ssi_modu