<!DOCTYPE html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1399722 --> <html> <head> <title>Test for Bug 1399722</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <script src="/tests/SimpleTest/EventUtils.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1399722">Mozilla Bug 1399722</a> <p id="display"></p> <div id="content" style="display: none;"> </div> <input spellcheck="true" onkeypress="if (event.key=='Enter')this.value='';"> <pre id="test"> <script class="testbody" type="application/javascript"> SimpleTest.waitForExplicitFinish(); SimpleTest.waitForFocus(function() { let elm = document.querySelector("input"); elm.focus(); sendString("AB"); synthesizeKey("KEY_Enter"); sendString("CD"); is(elm.value, "CD", "Can type into the textbox successfully after the onkeypress handler deleting the value"); SimpleTest.finish(); }); </script> </pre> </body> </html>