B站 返回404 测试过代理，结果一样

[LayneHe]

在提交前，请确保您已经检查了以下内容!

• [√] 你确实可以在浏览器或移动端中观看视频，但不能使用ykdl下载。
• [√] 您的ykdl为最新版。
• [√] 您已经阅读并按 https://github.com/zhangn1985/ykdl/wiki 中的指引进行了操作。
• [√] 您的问题没有在 https://github.com/zhangn1985/ykdl/issues 报告，否则请在原有 issue 下报告。
• [√] 本问题确实关于ykdl，而不是其他项目。

请将错误输出粘贴在下面:

PS C:\Users\LayneHe\Videos> ykdl -i --debug https://www.bilibili.com/video/BV1MK411j7M7
DEBUG:common:video_host> www.bilibili.com
DEBUG:common:short_name> bilibili
DEBUG:html:get_content> URL: https://www.bilibili.com/avNone/
Traceback (most recent call last):
  File "C:\Users\LayneHe\scoop\apps\python36\current\scripts\ykdl-script.py", line 11, in <module>
    load_entry_point('ykdl==1.6.2', 'console_scripts', 'ykdl')()
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\site-packages\cykdl\__main__.py", line 173, in main
    info = parser(u)
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\site-packages\ykdl\extractor.py", line 24, in parser
    info = self.prepare()
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\site-packages\ykdl\extractors\bilibili\bilibase.py", line 49, in prepare
    self.vid, info.title = self.get_vid_title()
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\site-packages\ykdl\extractors\bilibili\video.py", line 26, in get_vid_title
    html = get_content(self.url)
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\site-packages\ykdl\util\html.py", line 67, in get_content
    response = urlopen(req)
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\urllib\request.py", line 223, in urlopen
    return opener.open(url, data, timeout)
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\urllib\request.py", line 532, in open
    response = meth(req, response)
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\urllib\request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\urllib\request.py", line 570, in error
    return self._call_chain(*args)
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\urllib\request.py", line 504, in _call_chain
    result = func(*args)
  File "c:\users\laynehe\scoop\apps\python36\3.6.8\lib\urllib\request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 404: Not Found

如果您有其他附言，例如问题只在某个视频发生，或者是一般性讨论或者提出新功能，请在下面添加:

测试过多个视频，代理与直连情况也都测试过。都会返回 404 但是网页端直接播放是没有问题的，IP没有被Ban.