Moneris error on mobile Safari & Edge

A client has an issue when a subscriber processes a payment on their mobile device using Safari and/or Edge. When they land on the payment processor page, in Safari they get "Array" showing in the top left of the Moneris screen, and a blank screen in Edge. The payment processor is Moneris.
Chrome on mobile, as well as Chrome & Edge on a desktop works correctly, 

Joomla 3.10.11
CB 2.7.4+build.2022.12.29.18.19.35.200842eb9
CBSubs 4.6.1+build.2022.12.27.15.53.49.f4aed765b 

Thanks

You're seeing the error at Moneris and not on your site in CBSubs? My guess is that'd be a problem on their end if that's the case and suggest contacting them as we don't have any control over their site. If possible please provide a screenshot to Moneris as well so they can investigate it further.

Would there be any difference in the way, or in the information, that is sent through mobile Edge and Safari? The output on Moneris "Array" suggests that the information being sent to Moneris through these 2 mobile browsers is missing or incomplete. When mobile Chrome connects, it seems all the information is sent, as the payment page loads correctly.
If you can confirm all the same info is sent through all browsers, I can contact Moneris and begin there.

Thanks

There is no browser dependency in our implementation. Strictly speaking it's just a plain old HTML form submit and nothing more.