Repository: youtube-dl
Issue: Frontend Masters - Unable to log in
Labels: account-needed

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## Checklist

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Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2019.11.05. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
- Make sure that all provided video/audio/playlist URLs (if any) are alive and playable in a browser.
- Make sure that all URLs and arguments with special characters are properly quoted or escaped as explained in http://yt-dl.org/escape.
- Search the bugtracker for similar issues: http://yt-dl.org/search-issues. DO NOT post duplicates.
- Read bugs section in FAQ: http://yt-dl.org/reporting
- Finally, put x into all relevant boxes (like this [x])
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- [ ] I'm reporting a broken site support issue
- [x] I've verified that I'm running youtube-dl version **2019.11.05**
- [x] I've checked that all provided URLs are alive and playable in a browser
- [x] I've checked that all URLs and arguments with special characters are properly quoted or escaped
- [x] I've searched the bugtracker for similar bug reports including closed ones
- [x] I've read bugs section in FAQ


## Verbose log

<!--
Provide the complete verbose output of youtube-dl that clearly demonstrates the problem.
Add the `-v` flag to your command line you run youtube-dl with (`youtube-dl -v <your command line>`), copy the WHOLE output and insert it below. It should look similar to this:
 [debug] System config: []
 [debug] User config: []
 [debug] Command-line args: [u'-v', u'http://www.youtube.com/watch?v=BaW_jenozKcj']
 [debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
 [debug] youtube-dl version 2019.11.05
 [debug] Python version 2.7.11 - Windows-2003Server-5.2.3790-SP2
 [debug] exe versions: ffmpeg N-75573-g1d0487f, ffprobe N-75573-g1d0487f, rtmpdump 2.4
 [debug] Proxy map: {}
 <more lines>
-->

```
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '-u', 'PRIVATE', '-p', 'PRIVATE', 'https://frontendmasters.com/courses/vue/']
[debug] Encodings: locale cp1252, fs utf-8, out utf-8, pref cp1252
[debug] youtube-dl version 2019.11.05
[debug] Python version 3.7.4 (CPython) - Windows-10-10.0.18362-SP0
[debug] exe versions: ffmpeg N-93544-g0a347ff422, ffprobe N-93544-g0a347ff422
[debug] Proxy map: {}
[FrontendMastersCourse] Downloading login page
[FrontendMastersCourse] Logging in
ERROR: Unable to log in; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "c:\users\andre\appdata\local\programs\python\python37\lib\site-packages\youtube_dl\YoutubeDL.py", line 796, in extract_info
    ie_result = ie.extract(url)
  File "c:\users\andre\appdata\local\programs\python\python37\lib\site-packages\youtube_dl\extractor\common.py", line 529, in extract
    self.initialize()
  File "c:\users\andre\appdata\local\programs\python\python37\lib\site-packages\youtube_dl\extractor\common.py", line 433, in initialize
    self._real_initialize()
  File "c:\users\andre\appdata\local\programs\python\python37\lib\site-packages\youtube_dl\extractor\frontendmasters.py", line 32, in _real_initialize
    self._login()
  File "c:\users\andre\appdata\local\programs\python\python37\lib\site-packages\youtube_dl\extractor\frontendmasters.py", line 70, in _login
    raise ExtractorError('Unable to log in')
youtube_dl.utils.ExtractorError: Unable to log in; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
```


## Description

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If work on your issue requires account credentials please provide them or explain how one can obtain them.
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I was trying to download a course from FrontendMasters. I provided my login with the `-u` and `-p` flags but it gives me this error. Tried both Python 2 and Python 3, Windows and Linux, same error. I also checked several times my credentials and they are correct, my FrontendMasters account is active and i can watch the videos via browser.