Don't trust the ResizeObserver contentRect on Windows
Don't trust the ResizeObserver contentRect on Windows

Fixes #1200

say25/desktop,desktop/desktop,desktop/desktop,artivilla/desktop,gengjiawen/desktop,say25/desktop,gengjiawen/desktop,hjobrien/desktop,BugTesterTest/desktops,hjobrien/desktop,artivilla/desktop,artivilla/desktop,kactus-io/kactus,gengjiawen/desktop,j-f1/forked-desktop,BugTesterTest/desktops,hjobrien/desktop,say25/desktop,BugTesterTest/desktops,kactus-io/kactus,shiftkey/desktop,kactus-io/kactus,j-f1/forked-desktop,j-f1/forked-desktop,shiftkey/desktop,gengjiawen/desktop,say25/desktop,desktop/desktop,shiftkey/desktop,artivilla/desktop,hjobrien/desktop,j-f1/forked-desktop,desktop/desktop,shiftkey/desktop,BugTesterTest/desktops,kactus-io/kactus