input-pattern-dynamic-value.html (607B)
1 <!DOCTYPE html> 2 <meta charset="utf-8"> 3 <title>Pattern dynamic value attribute change</title> 4 <script src="/resources/testharness.js"></script> 5 <script src="/resources/testharnessreport.js"></script> 6 <link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1636495"> 7 <input pattern="a" value="a"> 8 <script> 9 test(function() { 10 let i = document.querySelector("input"); 11 assert_false(i.matches(":invalid")); 12 i.pattern = "b"; 13 assert_true(i.matches(":invalid")); 14 i.pattern = "("; 15 assert_false(i.matches(":invalid")); 16 }, "input validation is updated after pattern attribute change"); 17 </script>