中文用户请注意：请尽量用英文描述你的 issue，这样能够让尽可能多的人帮到你。
If you want to report a bug, please provide the following information:
- The steps to reproduce.
- A minimal demo of the problem via https://jsfiddle.net or http://codepen.io/pen if possible.
- Which versions of DPlayer, and which browser / OS are affected by this issue?