Repository: youtube-dl
Issue: Pleas look at radioklassik.at
Labels: site-support-request

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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 2019.05.11. 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 Issues with outdated version will be REJECTED.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 site you are requesting is not dedicated to copyright infringement, see https://yt-dl.org/copyright-infringement. youtube-dl does not support such sites. In order for site support request to be accepted all provided example URLs should not violate any copyrights.
- Search the bugtracker for similar site support requests: http://yt-dl.org/search-issues. DO NOT post duplicates.
- Finally, put x into all relevant boxes (like this [x])
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- [x] I'm reporting a new site support request
- [x] I've verified that I'm running youtube-dl version **2019.05.11**
- [x] I've checked that all provided URLs are alive and playable in a browser
- [x] I've checked that none of provided URLs violate any copyrights
- [x] I've searched the bugtracker for similar site support requests including closed ones


## Example URLs

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Provide all kinds of example URLs support for which should be included. Replace following example URLs by yours.
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- Single audio: https://radioklassik.at/programm/sendungsdetails/?sdk=rubato&sdd=17.05.2019

## Description

Even doe't work with supported High sierra 

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youtube-dl -v 'https://radioklassik.at/programm/sendungsdetails/?sdk=rubato&sdd=17.05.2019'
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://radioklassik.at/programm/sendungsdetails/?sdk=rubato&sdd=17.05.2019']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.05.11
[debug] Python version 3.7.3 (CPython) - Darwin-15.6.0-x86_64-i386-64bit
[debug] exe versions: avconv 12.3, avprobe 12.3, ffmpeg 4.1.1, ffprobe 4.1.1, rtmpdump 2.4
[debug] Proxy map: {}
[generic] ?sdk=rubato&sdd=17.05: Requesting header
WARNING: Falling back on generic information extractor.
[generic] ?sdk=rubato&sdd=17.05: Downloading webpage
[generic] ?sdk=rubato&sdd=17.05: Extracting information
ERROR: Unsupported URL: https://radioklassik.at/programm/sendungsdetails/?sdk=rubato&sdd=17.05.2019
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 796, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 529, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/generic.py", line 3329, in _real_extract
    raise UnsupportedError(url)
youtube_dl.utils.UnsupportedError: Unsupported URL: https://radioklassik.at/programm/sendungsdetails/?sdk=rubato&sdd=17.05.2019