By default, all HTTP headers on the origin will be inherited by a CDN. Enable the option to choose what headers will be cached by a CDN. Other headers will not be inherited.
To enable the option and choose which headers you want to be inherited by a CDN go to Advanced Settings and slide to the right Choose HTTP Headers to Cache.
After enabling the list of the most popular headers will appear in the field:
To delete the header press ×.
You can also add your custom headers. The new header can contain such characters as letters (a-z), numbers (0-9), dashes (-), underscores (_). If the header is added in a right way, it will appear in the orange square.
Pay attention, there are some default headers which can't be deleted: