Required Swift,Phone,iOS freelancer for Mimic Safari browser on WKWebview job

I would like to Mimic safari on my current existing browser app. Everytime I open Yeezysupply, add something to cart, I can see checkout page (see pic).

But when I open my browser, load the same page, it won't load the checkout page. (See pic 2 - loading circle). This may be because the site is identifying that I am using an app, so we must get around it..by possibly mimicking safari, change the WKWebview settings, or any other solution you may think of. Let me know ideas or solutions to not get detected.

Skills & Expertise Required

Swift Phone iOS