<!-- Please provide a clear and concise description of what the bug is. Include screenshots if needed. Please test using the latest version of the relevant React packages to make sure your issue has not already been fixed. --> React version: any ## Steps To Reproduce Add onTransitionStart and onTransitionEnd handlers to element with styles that contain transition declaration <!-- Your bug will get fixed much faster if we can run your code and it doesn't have dependencies other than React. Issues without reproduction steps or code examples may be immediately closed as not actionable. --> Link to code: https://github.com/facebook/react/blob/0b4f443020af386f2b48c47c074cb504ed672dc8/packages/react-dom-bindings/src/events/DOMEventProperties.js#L119 Link to docs: https://developer.mozilla.org/en-US/docs/Web/API/Element/transitionstart_event <!-- Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a repository on GitHub, or provide a minimal code example that reproduces the problem. You may provide a screenshot of the application if you think it is relevant to your bug report. Here are some tips for providing a minimal example: https://stackoverflow.com/help/mcve. --> ## The current behavior onTransitionEnd fires, onTransitionStart doesn't ## The expected behavior Both handlers should fire
React version: any
Steps To Reproduce
Add onTransitionStart and onTransitionEnd handlers to element with styles that contain transition declaration
Link to code:
https://github.com/facebook/react/blob/0b4f443020af386f2b48c47c074cb504ed672dc8/packages/react-dom-bindings/src/events/DOMEventProperties.js#L119
Link to docs:
https://developer.mozilla.org/en-US/docs/Web/API/Element/transitionstart_event
The current behavior
onTransitionEnd fires, onTransitionStart doesn't
The expected behavior
Both handlers should fire