Part of Nginx config for cookie-based routing.

mmmmCookies.hbs

    if ($http_cookie ~* (
        {{~#each cookies~}}
            {{~ this }}{{#unless @last}}|{{/unless}}
        {{~/each~}}
        )=Y) {
        rewrite ^{{ ocpUrl }}$ {{ bcpUrl }} redirect;
    }
    if ($http_cookie !~* (
        {{~#each cookies~}}
            {{~ this }}{{#unless @last}}|{{/unless}}
        {{~/each~}}
        )=Y) {
        rewrite ^{{ bcpUrl }}$ {{ ocpUrl }} redirect;
    }

output.conf

    if ($http_cookie ~* (bcp_active__my_account|bcp_active__credit_app)=Y) {
        rewrite ^/humans.txt$ /address/standardize redirect;
    }
    if ($http_cookie !~* (bcp_active__my_account|bcp_active__credit_app)=Y) {
        rewrite ^/address/standardize$ /humans.txt redirect;
    }