clicking on the CAPTCHA picture should refresh the CAPTCHA, which is normal under Google, but what happens when the click event is invalid under IE11
<Col
span={8}
onClick={this.getCaptcha.bind(this)}
style={
{ textAlign: "right", marginTop: "-3px" }
}
>
<img src={captcha} alt="" />
</Col >
getCaptcha = (captcha) => {
this.props.dispatch({
type: "user/fetchCaptcha",
});
this.setState({
captcha,
});
}