哥,您的《html video使用MediaRecorder实现录屏功能》这篇，请问不能录制接口获取的视频吗，flv，mp4的都试过，都是在掉mediaRecorder.start时报错，本地的视频都可以
-报错内容
1、[Vue warn]: Error in v-on handler: "UnknownError: Failed to execute 'start' on 'MediaRecorder': There was an error starting the MediaRecorder."
2、DOMException: Failed to execute 'start' on 'MediaRecorder': There was an error starting the MediaRecorder.