How to do it without Developer Mode:
- Open a new tab
- Open the Task Manager with Shift-Escape
- Kill task
- Use back button for the killed tab (JSFiddle won’t run the script)
- Fix bug
- Update
Or on MacOS,
- Open Activity Monitor
- Kill the first “Google Chrome Helper (Renderer)” process. It’s probably JSFiddle
- Fix the issue
- Run the code