When using this feature, there is not parameters that you can set. Like target system or _blank etc.
I need the url to open in the same tab but it seems it can only open in a new tab?
This is a problem, because depending on where you are redirecting to, your browser's popup blocker could kick in. Especially if you are redirecting to payment sites.
I have this scenario at the moment. When I first started, I thought there was a problem with my dev. Then eventually I saw the obscure popup blocker. I now have had 3 clients tell my my payment button is not working.
This is a problem.
So what I did is tried to run the bank in a webview widget. So this closed the webview and opened the bank url in the same window tab and no popup.
So that is a workaround but definitely not ideal.