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<html><body><form action="/action_page.php" method="get"> E-mail: <input type="email" name="userid"><br> <input type="submit" id="mySubmit" value="Submit" formnovalidate></form><p>Click the "Try it" button to specify that the form-data above should be validated on submission.</p><button onclick="myFunction()">Try it</button><p id="demo"></p><script>function myFunction() { document.getElementById("mySubmit").formNoValidate = false; document.getElementById("demo").innerHTML = "The formnovalidate attribute in the input element with type='submit' is no longer present, and the form-data will now be validated on submission.";}</script></body></html>