HTML `<input type='file'>` Not Triggering Change Event in Firefox with FileReader API - Need guide
I'm maintaining legacy code that I'm maintaining legacy code that I'm working on a file upload feature using the `<input type='file'>` in an HTML form, and I'm trying to read the file contents using the FileReader API. While the functionality works perfectly in Chrome, I have noticed that the change event is not triggering in Firefox. Here's the relevant code snippet: ```html <form id="uploadForm"> <input type="file" id="fileInput" accept="text/plain"> <button type="submit">Upload</button> </form> <div id="output"></div> <script> document.getElementById('uploadForm').addEventListener('submit', function(event) { event.preventDefault(); const fileInput = document.getElementById('fileInput'); if (fileInput.files.length > 0) { const file = fileInput.files[0]; const reader = new FileReader(); reader.onload = function(e) { document.getElementById('output').innerText = e.target.result; }; reader.readAsText(file); } else { alert('No file selected.'); } }); </script> ``` When I select a file in Firefox and try to submit the form, it does not read the file contents, and the output div remains empty. Additionally, I don't see any errors in the console. I've confirmed that the file input is correctly populated with a file, but it seems that the change event isn't firing as expected. I've also tried using the `change` event directly on the file input: ```javascript fileInput.addEventListener('change', function() { console.log('File input changed!'); }); ``` This doesn't seem to work either. I've ensured that my Firefox is up to date (version 108.0) and have cleared the cache to rule out any issues there. Is there something I'm missing or a known scenario with the FileReader API in Firefox? Any help would be appreciated! What am I doing wrong? This is my first time working with Html 3.11. Has anyone dealt with something similar? My team is using Html for this desktop app. Am I approaching this the right way?