[ted] json.decoder.JSONDecodeError: Extra data: line 1 column 34503 (char 34502)

[xHire]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2019.07.02
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

$ youtube-dl -v https://www.ted.com/talks/matt_cutts_try_something_new_for_30_days
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.ted.com/talks/matt_cutts_try_something_new_for_30_days']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.07.02
[debug] Python version 3.5.5 (CPython) - Linux-5.1.15-gentoo-x86_64-Intel-R-_Core-TM-2_Duo_CPU_T7500_@_2.20GHz-with-gentoo-2.6
[debug] exe versions: ffmpeg 3.4.5, ffprobe 3.4.5, rtmpdump 2.4
[debug] Proxy map: {}
[ted] matt_cutts_try_something_new_for_30_days: Downloading webpage
Traceback (most recent call last):
  File "/usr/lib64/python3.5/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib64/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/xhire/bin/youtube-dl/__main__.py", line 19, in <module>
  File "/home/xhire/bin/youtube-dl/youtube_dl/__init__.py", line 474, in main
  File "/home/xhire/bin/youtube-dl/youtube_dl/__init__.py", line 464, in _real_main
  File "/home/xhire/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2008, in download
  File "/home/xhire/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 796, in extract_info
  File "/home/xhire/bin/youtube-dl/youtube_dl/extractor/common.py", line 530, in extract
  File "/home/xhire/bin/youtube-dl/youtube_dl/extractor/ted.py", line 147, in _real_extract
  File "/home/xhire/bin/youtube-dl/youtube_dl/extractor/ted.py", line 178, in _talk_info
  File "/home/xhire/bin/youtube-dl/youtube_dl/extractor/ted.py", line 138, in _extract_info
  File "/usr/lib64/python3.5/json/__init__.py", line 319, in loads
    return _default_decoder.decode(s)
  File "/usr/lib64/python3.5/json/decoder.py", line 342, in decode
    raise JSONDecodeError("Extra data", s, end)
json.decoder.JSONDecodeError: Extra data: line 1 column 34503 (char 34502)

Description

This issue happens with any TED talk video.