Jsvalidator in CakePHP is incorrectly error-correcting textareas

I'm using the CakePHP Javascript Validator, and everything works just fine EXCEPT validati开发者_开发技巧ng textareas.

The problem isn't that it doesn't validate at all - but it has a problem with:

'rule' => array('between', 20, 500),

This error is triggered if they enter any linebreaks anywhere in the textarea regardless of the total # of characters or even the total # of characters in the first line.

Any thoughts as to 1) why this would happen and 2) how to fix it?

Edit:

The regex is being written in plugins/js_validate/views/helpers/validation.php, and it appears to be generating this:

The regex it's spitting out for validating my textarea field is this: \/^.{4,138}$\/

I assume the problem is the ".", since that is "anything except newlines" or something. What do I replace it with to allow newlines?

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Use s modifier which makes dot metacharacter match all characters, including newlines. In your case expression will look like:

/^.{4,138}$/s