似乎是 safari/webkit 中的一个错误.也许这个，或者任何这些.尝试升级您的 Safari.如果没有更新的稳定版本，请尝试 4 测试版.

seems to be a bug in safari / webkit. maybe this one, or any of these. try upgrading your safari. if there is no more recent stable version, try the 4 beta.