Indicate that the form is not to be validated on submit:
The novalidate attribute is a boolean attribute.
When present, it specifies that the form-data (input) should not be validated when submitted.
The numbers in the table specify the first browser version that fully supports the attribute.
The novalidate attribute is new in HTML5.
In XHTML, attribute minimization is forbidden, and the novalidate attribute must be defined as <form novalidate="novalidate">.