[cbc:watch] Video plays in browser but youtube-dl fails

[ProgrammerAKL]

Please follow the guide below

• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.08.18. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2017.08.18

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

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 here. It should look similar to one below (replace it with your log inserted between triple ```):

youtube-dl-2017-08-18 -o "C:/Video/Coron 9206 video" "http://watch.c
bc.ca/coronation-street/-/episode-9206/38e815a-00cbaeadc5c" --no-check-certifica
te --verbose -f 2234
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-o', 'C:/Video/Coron 9206 video', 'http://watch.cbc
.ca/coronation-street/-/episode-9206/38e815a-00cbaeadc5c', '--no-check-certifica
te', '--verbose', '-f', '2234']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2017.08.18
[debug] Python version 3.4.4 - Windows-7-6.1.7601-SP1
[debug] exe versions: none
[debug] Proxy map: {}
[cbc.ca:watch] 38e815a-00cbaeadc5c: Downloading XML
ERROR: Unable to download XML: HTTP Error 401: Unauthorized (caused by HTTPError
()); please report this issue on https://yt-dl.org/bug . Make sure you are using
 the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl
with the --verbose flag and include its complete output.
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmput9or0a0\bu
ild\youtube_dl\extractor\common.py", line 502, in _request_webpage
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmput9or0a0\bu
ild\youtube_dl\YoutubeDL.py", line 2168, in urlopen
  File "C:\Python\Python34\lib\urllib\request.py", line 470, in open
  File "C:\Python\Python34\lib\urllib\request.py", line 580, in http_response
  File "C:\Python\Python34\lib\urllib\request.py", line 508, in error
  File "C:\Python\Python34\lib\urllib\request.py", line 442, in _call_chain
  File "C:\Python\Python34\lib\urllib\request.py", line 588, in http_error_defau
lt
...
<end of log>

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The same problem occurs with other URLs such as
http://watch.cbc.ca/coronation-street/-/episode-9223/38e815a-00cda758969

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Description of your issue, suggested solution and other information

Everything was normal a few days ago; they must have made a change to the website. The video has no trouble playing in the browser and it is still possible to detect m3u8 URLs such as https://cbcvott-a.akamaihd.net/p//38e815a-00cbaeadc5c//CBC_CORONATION_STREET_9206-v2-13479778/segments/CBC_CORONATION_STREET_9206_v6/prog_index.m3u8, but it does not seem to be a straightforward ffmpeg download ... please help.