The "expires" parameter of cfcookie is only accepting integer values.
CF 9.01 is accepting floating point values to have a shorter expire time than 1 day.
<cfcookie name="testCookie1" value="ENG" expires=0.417>
The 0.417 represents the 10hrs (10/24).
This works fine in CF 9.01. However in Lucee, it looks like only integer numbers are allowed, and in my example, the Cookie expires immediately (I suspect the 0.417 becomes 0).
Support discussion: https://dev.lucee.org/t/cf-lucee-incompatibility-for-cfcookie/6261