invisible listheaders are still visible in IE

    zk.afterLoad('zul.mesh', function () {
        if (!zk.ie && !zk.edge) return; // Patch IE/Edge

        var xMeshWidget = {};
        zk.override(zul.mesh.MeshWidget.prototype, xMeshWidget, {
            domFaker_: function (out, fakeId) { //used by redraw
                var head = this.head;
                out.push('<colgroup id="', head.uuid, fakeId, '">');
                for (var w = head.firstChild; w; w = w.nextSibling) {
                    var wd = w._hflexWidth ? w._hflexWidth + 'px' : w.getWidth(),
                        visibility = w.isVisible() ? '' : 'visibility: collapse;';
                    if (!w.isVisible()) wd = '0';
                    // B70-ZK-2036: Style width should end with 'px'.
                    wd = wd != null ? 'width: ' + wd + ';' : '';
                    out.push('<col id="', w.uuid, fakeId, '" style="', wd, visibility, '"/>');
                }
                if (fakeId.indexOf('hd') > 0 || fakeId.indexOf('ft') > 0)
                    out.push('<col id="', head.uuid, fakeId, '-bar" style="width: 0px" />');
                out.push('</colgroup>');
            }
        });

        var xHeaderWidget = {};
        zk.override(zul.mesh.HeaderWidget.prototype, xHeaderWidget, {
            bind_: function () {
                this.$supers(zul.mesh.HeaderWidget, 'bind_', arguments);
                if (this.parent.isSizable())
                    this._initsz();
                var mesh = this.getMeshWidget();
                if (mesh) {
                    var $n = jq(this.$n()),
                        $faker = jq(this.$n('hdfaker')),
                        w = this.getWidth();
                    if (!this.isVisible()) {
                        $n.css('display', '');
                        $faker.css('display', '');
                        $faker.css('visibility', 'collapse');
                        $faker.css('width', '0');
                    } else {
                        $faker.css('visibility', '');
                        // B70-ZK-2036: Check if header has hflex width first.
                        if (!this._hflexWidth && w) {
                            $faker.css('width', w);
                        }
                    }
                }
                this.fixFaker_();
            }
        });
    });