Supporting Internet Explorer 11 doesn’t mean you need to give it the same experience as a modern browser:
Making sure (some of) your code works in older browsers, does not mean all functionality has to work everywhere. But, mind you, ninety percent of web development means putting text and images in boxes.
And to be honest, there is no reason to not enable this everywhere. Same for form submissions. Make it boring. Make it solid. And sprinkle delight on it.