A field that appears to collect credit card information lacks proper input validation patterns. This can lead to invalid data being submitted and may indicate insufficient client-side validation. While server-side validation is most important, proper client-side patterns help improve user experience and provide an additional layer of data integrity.
<input type="text" name="credit_card" placeholder="Card number">Add appropriate validation patterns and input attributes for credit card fields.
<input type="text" name="credit_card"
pattern="[0-9\s]{13,19}"
maxlength="19"
placeholder="1234 5678 9012 3456"
autocomplete="cc-number">Proper validation patterns help ensure data integrity, improve user experience with immediate feedback, and work alongside server-side validation to maintain security standards.
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