I am trying to integrate PayU payment gateway on my website, referring their documentation. They are recommending to use merchant key as a hidden input field but should i really put my merchant key on the frontend as a educated user can easily find it out. I tried making the payment request from my backend and sending the HTML recieved to the user but the script file is not loading is stuck on the loading page. What can i do to load the script file so that it redirects to the payment page.
