javascript - Does Firefox not support bootstrap tooltip? It's good in Google

Question

<button type="button" class="btn btn-link General-fontsize custom-btn operation-icon-margin" ng-disabled="!vm.startEnabled" ng-click="vm.openDialog('start')">

                <span data-toggle="tooltip" data-placement="top" title="开机" class="icon icon-play icon-large" ng-class="{'icon-green': vm.startEnabled, 'icon-gray': !vm.startEnabled}"></span>
            </button>
            <button type="button" class="btn btn-link General-fontsize custom-btn operation-icon-margin" ng-disabled="!vm.stopEnabled" ng-click="vm.openDialog('stop')">
                <span data-toggle="tooltip" data-placement="top" title="关机" class="icon icon-off icon-large" ng-class="{'icon-red': vm.stopEnabled, 'icon-gray': !vm.stopEnabled}"></span>
            </button>
            <button type="button" class="btn btn-link General-fontsize custom-btn operation-icon-margin" ng-disabled="!vm.rebootEnabled" ng-click="vm.openDialog('reboot')">
                <span data-toggle="tooltip" data-placement="top" title="重启" class="icon icon-refresh icon-large" ng-class="{'icon-blue': vm.rebootEnabled,'icon-gray': !vm.rebootEnabled}"></span>
            </button>
            <button type="button" class="btn btn-link General-fontsize custom-btn operation-icon-margin" ng-disabled="!vm.consoleEnabled" ui-sref="cloud-ecs-mgmt.console({id:vm.targetInstances[0].id})">
                <span data-toggle="tooltip" data-placement="top" title="控制台" class="icon icon-desktop icon-large" ng-class="{'icon-blue': vm.consoleEnabled, 'icon-gray': !vm.consoleEnabled}"></span>
            </button>

Answer 1

There seems to be no problem with Firefox, and all cases on the official website can be opened. Can you see if the DOM element is loaded here? It may be covered.