* **disable_email_validation** (Boolean) - Disables the check if a mail address is in a valid format and can be resolved via DNS.
* **disable_url_validation** (Boolean) - Disables the DNS lookup of an URL.
* **dlogfile - location of the developer log file
+* **dlogip - restricts develop log writes to requests originating from this IP address
* **frontend_worker_timeout** - Value in minutes after we think that a frontend task was killed by the webserver. Default value is 10.
* **hsts** (Boolean) - Enables the sending of HTTP Strict Transport Security headers
* **ignore_cache** (Boolean) - For development only. Disables the item cache.