A cookie is a piece of data that a site puts on your device, so it can remember you when you visit again. To choose whether Safari does not block cookies, tap Settings > Safari, then turn ooff Block All Cookies.
If you block cookies, live meetings/trading will not work. Here are some examples of issues you may experience:
You might not be able to sign in to a site using your correct username and password.
You might see a message that cookies are required or that your browser's cookies are off.
Some features on a site might not work.