[zdf.de] Unable to download JSON metadata: HTTP Error 403: Forbidden (caused by HTTPError())

[mariussoutier]

Bug: Everything on zdf.de throws 403 when downloading JSON metadata.

youtube-dl --verbose https://www.zdf.de/dokumentation/zdfinfo-doku/das-war-dann-mal-weg-104.html
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--verbose', u'https://www.zdf.de/dokumentation/zdfinfo-doku/das-war-dann-mal-weg-104.html']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2017.02.11
[debug] Python version 2.7.13 - Darwin-16.4.0-x86_64-i386-64bit
[debug] exe versions: avconv 11.4, avprobe 11.4, ffmpeg 3.2.4, ffprobe 3.2.4, rtmpdump 2.4
[debug] Proxy map: {}
[ZDF] das-war-dann-mal-weg-104: Downloading webpage
[ZDF] das-war-dann-mal-weg-104: Downloading JSON content
[ZDF] das-war-dann-mal-weg-104: Downloading JSON metadata
ERROR: Unable to download JSON metadata: HTTP Error 403: Forbidden (caused by HTTPError()); please report this issue on https://yt-dl.org/bug .

youtube-dl -U
youtube-dl is up-to-date (2017.02.11)

Webpage:
https://www.zdf.de/dokumentation/zdfinfo-doku/das-war-dann-mal-weg-104.html

[mariussoutier]

Wow, that was fast. Thanks!