Q: Destination dropdown list automatically closes when clicking on scrolling mechanism to scroll down IE11, when I focus the input, a drop-down list is displayed, when I roll the scroll bar of the drop-down list, the input is blurred.
I expect it to still focus input when I roll the scroll bar of the drop-down list.
With chrome, that is normal.
I use VueJS.
Thank you.

A: I made a test with your code sample in IE 11. I find that after clicking on dropdown. list is displayed and while scrolling or after scrolling focus is still on the input. you can see that I can type in it which means it has the focus. 

If you are talking about the flickering of the cursor in input than it looks like a bug.
If you are using any older version than it is advisable to use IE 11. 
