发现了问题. chrome中存在问题.这是问题的链接 https://bugs.chromium .org/p/chromium/issues/detail?id = 941608#c15

Found the problem. There is an issue in chrome. Here is the link of the issue https://bugs.chromium.org/p/chromium/issues/detail?id=941608#c15

通过将chrome更新为beta版，解决了我的问题.

By updating chrome into beta version, solve my problem.