On Orion, if you try to visit https://login.accor.com from Orion, you will get a WAF-type error from Iperva. This does not appear on other browsers (i.e. Firefox) from the same IP address

@laiz was able to reproduce this, so this is probably entirely fingerprinting of the browser (engine).
Orion should behave as other browsers like Firefox do (and pass whatever Iperva is doing), thus loading the login page.
Version 1.1.1 (149-rc), WebKit 625.1.8
Tahoe (26)