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Why does HTML 5 validation work if I don't have a document like HTML 5?

I have come across this several times and it is annoying. Dojo has a required attribute to run form validation. HTML 5 now also uses the same attribute. The problem arises because HTML5 does not care about what value is required = required = "all" means that it is necessary.

So, on my form elements, if I require = "false" to point to Dojo, I don't want this to be confirmed. In some cases, Chrome and Firefox HTML 5 validation is performed in this input field.

I have tried the HTML 5 newsletter attribute, but it seems that if the attribute is required, it ignores it.

I think I should ask a question. How to disable HTML5 validation in general? or in another way. Why HTML 5 validation is performed if I do not specify the HTML 5 document type.

thank

Here is a complete sample of the problem. Open it in Firefox or Chrome

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<body>
  <script language="javascript" type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/dojo/1.4.0/dojo/dojo.xd.js"></script>

  <script language="javascript" type="text/javascript">
    dojo.require("dojo.parser");
    dojo.require("dijit.form.Form");

    dojo.addOnLoad(function () {
      dojo.parser.parse();
    });
  </script>
  <form novalidate="novalidate" dojoType="dijit.form.Form">
  <select required="false" formnovalidate="formnovalidate">
    <option value="" >Please Choose A Category...</option>
    <option value="one" >One</option>
  </select>
  <button type="submit">Save</button>
  </form>
</body>
</html>
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2 answers

To answer the second question ...

Why is HTML 5 validated if I do not specify an HTML 5 document type?

"HTML5 DOCTYPE" is not a method of identifying "HTML5 documents." This is just the shortest DOCTYPE that ensures that the standards mode runs in browsers (and why it was chosen in the HTML5 specification).

, , " HTML5". HTML, . , HTML- , HTML5 ( " HTML5" ).

HTML, "HTML- HTML5".

+5

, novalidate form formnovalidate input.

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