HTML Form Elements Not Submitting Properly on Mobile Devices - Event Listeners Conflicting
I'm building a feature where I've tried everything I can think of but I'm following best practices but I'm sure I'm missing something obvious here, but I've been struggling with a form that works perfectly on desktop but fails to submit on mobile devices. The form consists of several input fields, including text inputs, a select dropdown, and radio buttons, but when I try to submit it from a mobile browser, I receive a JavaScript behavior: `Uncaught TypeError: want to read properties of null (reading 'value')`. I suspect this might be related to event listeners I've added for validation. Here’s a simplified version of the code: ```html <form id="myForm"> <input type="text" id="username" required /> <select id="userRole" required> <option value="">Select Role</option> <option value="admin">Admin</option> <option value="user">User</option> </select> <input type="radio" name="subscribe" value="yes" required /> Yes <input type="radio" name="subscribe" value="no" /> No <button type="submit">Submit</button> </form> ``` And here’s my JavaScript validation logic: ```javascript document.getElementById('myForm').addEventListener('submit', function(event) { const username = document.getElementById('username').value; const userRole = document.getElementById('userRole').value; if (!username || !userRole) { event.preventDefault(); alert('Please fill out all required fields.'); } }); ``` I've tested this on iOS and Android devices and consistently face the same scenario. After debugging, it seems the event listener might be firing prematurely or the input fields are not being recognized at the time of submission. To troubleshoot, I've added console logs in various places, and they indicate that the input elements are available at the time of the submit event. However, the behavior still continues. I also ensured that my HTML is valid and that there are no conflicting scripts. Is there something specific about handling form submissions on mobile devices that I might be missing? Any insights or suggestions would be greatly appreciated! Any help would be greatly appreciated! For context: I'm using Javascript on Windows 10. I've been using Javascript for about a year now. Cheers for any assistance!