NGX_ESCAPE_REFRESH  735 src/http/ngx_http_special_response.c     escape = 2 * ngx_escape_uri(NULL, location, len, NGX_ESCAPE_REFRESH);
NGX_ESCAPE_REFRESH  779 src/http/ngx_http_special_response.c         p = (u_char *) ngx_escape_uri(p, location, len, NGX_ESCAPE_REFRESH);