validateAt not supported

According to the documentation, the validateAt attribute is supported for the cfinput tag but I’m getting an error
“attribute validateAt is not supportrd for tag input”
Any ideas why?

Looks like only the method stub was added in order to prepare for future implementation:

I suspect that most Lucee developers do not use cfform, cfinput, etc., and that’s why it never got the priority to be implemented.

@brian4406 you could raise this as an issue in the bug tracker; however, without commercial support its unlikely to get up.

As a rule of thumb, UI tags are not treated with the same fidelity with respect to ACF compatibility as other areas of CFML. This is due largely to their general lack of popularity, and the reality that UI libraries change so rapidly.