DISCLAIMER: I know everyone hates cfform and cfdiv and we are removing then as fast as we can. In the process, we found a couple things that "probably should" work (in that the tags are still listed as compatible) or else marked as deprecated.
<cfinput> should pass any data-* attributes on to the <input> fields that it creates. Instead, Lucee errors:
Attribute data-gameid is not allowed for tag cfinput