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The novalidate Attribute

The Current State of HTML5 Forms

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Live Demo (with novalidate)

“4” would fail validation.


Live Demo (without novalidate)

“4” would fail validation.


 


Firefox
4+

Safari
7-

Safari
7-

Chrome
10+

Opera
10.0+

IE
10+

Android
4.2+

The Low Down

novalidate if a form-level attribute used to turn off validation for a form, despite the attributes of the inputs it contains (i.e. will override inputs with therequired attribute, or that would otherwise fail validation).

  • Forms naturally validate, no special attributes needed. This special attribute is needed to turn that off. Include it only on the <form> opening tag.
  • You might use this if you plan to do your own client-side validation, if you want to create your own validation bubbles, or if you plan to go all server-side validation (which you need to do anyway).
  • Do not use novalidate if you simply want to internationalize or otherwise change the content of the default error messages. This can be done with JavaScript.
  • This is a classic example of why server side validation is extra important: one little change in development tools can force an entire form to skip validation allowing bad data to go through.
  • While Safari, iOS and Android to support the validation object, the form is sumbmitted whether the form validates or not, as if the novalidateattribute was always present.
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