Scenario 1: 1. In Moodle, navigate to a course page (one with enough content that the page is scrollable.) 2. Shrink the window's width to less than 991 pixels (smaller than the "medium" breakpoint) 3. Click the icon to open the drawer 4. Note that the drawer opens in a modal. The rest of the page (behind the drawer) is grayed out and can't be scrolled. 5. Expand the window to wider than 991 pixels (larger than the "medium" breakpoint) Expected result: The drawer goes from modal to normal mode. The main content of the page is no longer grayed out, and the main content is again scrollable. Actual result: All of the above, except that the main content is not scrollable. Scenario 2: 1. In Moodle, navigate to a course page (one with enough content that the page is scrollable.) 2. Expand the window's width to more than 991 pixels (wider than the "medium" breakpoint) 3. Click the icon to open the drawer 4. Note that the drawer does not open as a modal. The rest of the page is visible and scrollable as normal. 5. Narrow the window to less than 991 pixels wide (narrower than the "medium" breakpoint) Expected result: The drawer turns into a modal. The main content of the page gets grayed out, and scrolling the main content is disabled. Actual result: The drawer does turn into a modal and the page does get grayed out, but scrolling of the main content is not disabled.