[Panel] Pattern setting is ignored in some cases about kirby HOT 4 CLOSED

One fix would be that Kirby adds ^ and $ to the start/end of the pattern if not already present.

That doesn't sound like a terrible solution honestly

but seems like the HTML attribute is rather defined as exact match (so nothing before or after the match either)

This is what MDN says: The pattern's regular expression must match the entire input's value, rather than matching a substring - as if a ^(?: were implied at the start of the pattern and )$ at the end.

from kirby.

One fix would be that Kirby adds ^ and $ to the start/end of the pattern if not already present.

I think it could even be dumber and simply add them always, no need to check for the presence: /^^foo$$/ matches foo too

from kirby.

Just curious about what happens if you give it "^\d{4,4}$" as pattern.
I mean, my guess is that the panel considers it valid if any part of the value matches your pattern.

from kirby.

Yep that's the issue. Backend checks only for any match of the pattern, but seems like the HTML attribute is rather defined as exact match (so nothing before or after the match either). One fix would be that Kirby adds ^ and $ to the start/end of the pattern if not already present.

from kirby.