jQuery validation issue for allowed characters -

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i use jquery validation in php page. specific input field set following criteria:

accept: "[a-zÀ-ú0-9.,'& -]+"

i want allow alphanumeric characters (both lowercase , uppercase), point, comma, single quote, ampersand, blank space , hyphen.

it seems work fine, noticed characters \ (backslash) , ^ (caret) still accepted.

is jquery bug? if not, please me find out what's wrong code? thank in advance


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