This looks more like a defect than a question or a discussion, but:
1) In latest Firefox (72.0.1 64-bit on Mac), load the url: https://esqa.moneris.com/HPPtoken/index.php?id=ht1P2N6Z2AY6QQ4
2) In dev tools, check Network activity and notice an infinite loop of requesting card verification (and failing).
Originally, I noticed this by loading my profile in an iframe, although it seems to only load one request when the iframe is first initialized.
In reply to RR_Moneris:
In reply to Garrett: