场景说明

网页指定video属性如下：

<div class="box showBorder black">
  <video id="vid2" class="box abs video" autoplay="autoplay" muted></video>
</div>

运行提示出错：

10.375: Failed to createAnswer: OperationError: PeerConnection cannot create an answer in a state other than have-remote-offer or have-local-pranswer.

v.js:70 Uncaught (in promise) DOMException: Failed to parse SessionDescription. a=extmap-allow-mixed Expects at least 2 fields.

运行版本：

解决方案

升级google浏览器