I thought at first it was the vanishing scrollbar when the popup opens, but there's more to it. Repeated use of the modal causes the page to increasingly shrink horizontally.
Adding the following to the modal body partially solves the problem, but not completely:
Not fixed yet, if you have multiple tabs open, and you close one, then the layout of the other tab glitches and then gets repeatedly smaller when opening and cancelling close modal.
I thought at first it was the vanishing scrollbar when the popup opens, but there's more to it. Repeated use of the modal causes the page to increasingly shrink horizontally.
Adding the following to the modal body partially solves the problem, but not completely:
HTML("<head><style>.modal-open {overflow: auto;} .modal-open[style] {padding-right: 0px !important;}</style></head>"),