187606 2018-07-12 10:10:09 -0700 Multiple presses of spacebar on once checked and focused radio button does not fire subsequent events 2018-07-12 10:13:08 -0700 1 1 1 Unclassified WebKit Forms Safari 11 Mac OS X 10.11 NEW https://codepen.io/jasonwilliams1/pen/XBbZjL P2 Normal --- 1 jase.williams webkit-unassigned cdumez wenson_hsieh oldest_to_newest 1441549 0 jase.williams 2018-07-12 10:10:09 -0700 Steps to reproduce the problem: 1. Navigate to https://codepen.io/jasonwilliams1/pen/XBbZjL 2. Focus on the textbox 3. Press shift-tab to move focus into the radio button group 4. Press spacebar to check the radio button 5. Press spacebar to redundantly check the radio button 6. observe no additional click event in the console What is the expected behavior? Right now its not clear, I don't see this mentioned in the specification either. What went wrong? I should be expecting additional click events in the console, but only 1 fires Firefox, Edge and Internet Explorer fire multiple events for each time i press spacebar Chrome version: 67.0.3396.99 Channel: stable OS Version: 10.0 Flash Version: Arises from: https://github.com/facebook/react/issues/4854#issuecomment-404543424 1441550 1 jase.williams 2018-07-12 10:11:49 -0700 Affects Safari Version 11.1 (11605.1.33.1.3) 1441552 2 jase.williams 2018-07-12 10:13:08 -0700 WHATWG issue raised: https://github.com/whatwg/html/issues/3817