Lookaheads are not working in the inputmask?

[Granada2013]

Hello! The following mask is not working correctly:
Inputmask({ regex: "^(0|(?!0+$)[\dA-Z]+)$", autoUnmask: false }).mask(selector) It autocompletes the input with non-editable zero. The idea behind this regex is that the field can contain a single 0 or a sequence of digits and capital letters but not a sequence of zeros only.

Does this problem occur because of the lookahead in the regexp and if so, how can it be fixed?

Chrome, Mozilla Inputmask version 5.0.6

Thank you!

[RobinHerbots]

@Granada2013,

A lookahead is not supported. See #1873 for some more info.