Cannot handle if website use javascript to generate names on the fly

[yoonghm]

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• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.05.18.1. 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 Issues with outdated version will be rejected.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 2017.05.18.1

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• At least skimmed through README and most notably 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 -v flag to your command line you run youtube-dl with, 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 -v https://video.toggle.sg/en/tv-show/news/may-2017-cna-singapore-tonight/fri-19-may-2017/512456
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://video.toggle.sg/en/tv-show/news/may-2017-cna-singapore-tonight/fri-19-may-2017/512456']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.05.18.1
[debug] Python version 2.7.12 - Linux-4.4.0-75-generic-x86_64-with-Ubuntu-16.04-xenial
[debug] exe versions: ffmpeg 2.8.11-0ubuntu0.16.04.1, ffprobe 2.8.11-0ubuntu0.16.04.1
[debug] Proxy map: {}
[generic] 512456: Requesting header
WARNING: Falling back on generic information extractor.
[generic] 512456: Downloading webpage
[generic] 512456: Extracting information
ERROR: Unsupported URL: https://video.toggle.sg/en/tv-show/news/may-2017-cna-singapore-tonight/fri-19-may-2017/512456
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/generic.py", line 1970, in _real_extract
    doc = compat_etree_fromstring(webpage.encode('utf-8'))
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/compat.py", line 2526, in compat_etree_fromstring
    doc = _XML(text, parser=etree.XMLParser(target=_TreeBuilder(element_factory=_element_factory)))
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/compat.py", line 2515, in _XML
    parser.feed(text)
  File "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1653, in feed
    self._raiseerror(v)
  File "/usr/lib/python2.7/xml/etree/ElementTree.py", line 1517, in _raiseerror
    raise err
ParseError: not well-formed (invalid token): line 11, column 50
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 760, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 433, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/generic.py", line 2795, in _real_extract
    raise UnsupportedError(url)
UnsupportedError: Unsupported URL: https://video.toggle.sg/en/tv-show/news/may-2017-cna-singapore-tonight/fri-19-may-2017/512456
...
<end of log>

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If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

https://video.toggle.sg/en/tv-show/news/may-2017-news-5/fri-19-may-2017/512465

Note that youtube-dl does not support sites dedicated to copyright infringement. In order for site support request to be accepted all provided example URLs should not violate any copyrights.

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Description of your issue, suggested solution and other information

I guess the website use javascript to generate final links (video and audio) for streaming.

https://k-toggle.akamaized.net/dash/p/2082311/sp/208231100/serveFlavor/entryId/0_h7ttac2w/v/,12/pv/1/flavorId/0_98vlffar,12/pv/1/flavorId/0_11hqfxh5,12/pv/1/flavorId/0_sthtlgvo,2/pv/1/flavorId/0_uys1uif6,12/pv/1/flavorId/0_oeirwtcp,/forceproxy/true/name/a.mp4.urlset/fragment-109-f2-a1-x3.m4s
https://k-toggle.akamaized.net/dash/p/2082311/sp/208231100/serveFlavor/entryId/0_h7ttac2w/v/,12/pv/1/flavorId/0_98vlffar,12/pv/1/flavorId/0_11hqfxh5,12/pv/1/flavorId/0_sthtlgvo,2/pv/1/flavorId/0_uys1uif6,12/pv/1/flavorId/0_oeirwtcp,/forceproxy/true/name/a.mp4.urlset/fragment-109-f5-v1-x3.m4s

Is there a mechanism for youtube_dl to call javascript and see the generated URLs? Must find away HOW the streamed videos and audios are passed to web browser.