Airmiles.ca will not complete ticket purchase in Firefox 64.0 if set to Private Browsing mode! Ideas as to why?
Everything went well with the booking until I got to the last page where I review the booking and Air Mile Flights Terms and Conditions. "By clicking on this button, I have read the Travel Documentation Advisory and agree to the terms and conditions of the AIR MILES Reward Program". When I click that link the page proceeds to "PROCESSING Please Wait", then it quickly flashes to "Authorizing" and then reverts to the page that I just left. It never stops on the page where I would enter the Payment details.
If I disable private browsing the site functions properly and I can complete the transaction. Popups and cookies were allowed in both scenarios.
Additional System Details
- Shockwave Flash 31.0 r0
- User Agent: Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0
My guess would be the Tracking Protection function of the Content Blocking feature, which blocks embedded content from other sites that is associated with cross-site tracking. So that could affect some verification services and perhaps even payment processing scripts.
If you need to make a temporary exception to Content Blocking in a private window, you can use the "shield" icon at the left end of the address bar. But if you are redirected to a new payment site, then the exception would no longer apply, so the problem may reoccur there.
More info: Content blocking