If the Private setting is enabled on your Apple iOS device, GunBroker.com cannot access the required data (cookies) necessary to complete the sign in process. See the below steps to disable private settings in Safari.
- On an iPhone, iPad, or iPod touch, open Safari, then tap .
- If the ‘Private’ is enabled, then you will see ‘Private’ highlighted in white.
- Tap ‘Private’ to turn off.
- Tap Done.
See below link for instructions on disabling private mode for older versions of IOS.