I think I found a bug on radio buttons.
The onChange event will only be fired when clicking on the label and not when clicking on the circle.
I’m using React. This is the code:
<label>
<input type="radio" value="photos" name="options" onChange={this.handleOptionChange}/>
<span>Photos</span>
</label>
<label>
<input type="radio" value="icons" name="options" onChange={this.handleOptionChange}/>
<span>Icons</span>
</label>
Version 26.0.21.3 (Prerelease)