Bootstrap 3 modal fires and causes page to shift to the left momentarily / browser scroll bar problems

Question

I am working on a site using Bootstrap 3.1.0.

You\'ll notice when the modal window opens, the browser scroll bar just disappears for a split second, then comes back.

Answer 1

I had this problem with Bootstrap 4. I have html { overflow-y: scroll; } and I think it is a problem but after add .modal-open[style] { padding-right: 0px !important; } to my local css file, everything work perfect!

.modal-open[style] { 
    padding-right: 0px !important; 
}