When user trying to connect with their Facebook account through APP, the continue/next and the back button is showing in chrome browser but it is hiding in iPhone safari browser. Is there any solution to fix this issue ? Attaching a screenshot below for your reference, kindly check and do the needful.

Our Facebook API Version is 16.O

Reference Screenshots - IPhone Safari Browser - https://drive.google.com/file/d/1q07LVAnlirZT80Ra7m5LWWG35be9LVZ1/view?usp=sharing

Chrome Browser - https://drive.google.com/file/d/1wGpcwHtKE3-kpvd1P4q6WuNy5emS38P-/view?usp=sharing