HTML Standard attribute: challenge
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The HTML challenge attribute indicates that the
value of an element should be challenged when submitted. It applies to <keygen>
elements. Note: it appears likely that <keygen>
elements will be dropped from future versions of HTML so it may be desirable
not to use <keygen>
elements.
Valid attribute
values (when used with <keygen>
elements) include:
Value
|
Description
|
challenge
|
Value of element should
be challenged when submitted
|
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