这不是您想要的答案，但是-这是jQuery UI的一个开放(未解决)错误. http://bugs.jqueryui.com/ticket/9658

Not the answer you were hoping for, but - this is an open (unresolved) bug with jQuery UI. http://bugs.jqueryui.com/ticket/9658

更新:此错误已在2015年3月发布的jQueryUI 1.11.4中修复.

Update: this bug was fixed in jQueryUI 1.11.4, which was released in March 2015.