Can't download subtitles from www.safaribooksonline.com

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.07.02. 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 Issues with outdated version will be rejected.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 2017.07.02

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Youtube-dl can't download (parse) subtitles from some of the video on www.safaribooksonline.com, for example downloading subs from "Git Essentials Livelessons" result only 1 subtitle of 37 - № 13.

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Log:

..\youtube-dl>youtube-dl.exe -v -u Username -p Password --s
kip-download --write-sub --convert-subs srt -o "...%(playlist)s\%(playlist
_index)s - %(title)s.%(ext)s" "https://www.safaribooksonline.com/library/view/gi
t-essentials-livelessons/9780134655284/"
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', '-u', 'PRIVATE', '-p', 'PRIVATE', '--skip-down
load', '--write-sub', '--convert-subs', 'srt', '-o', 'H:\\Video\\%(playlist)s\\%
(playlist_index)s - %(title)s.%(ext)s', 'https://www.safaribooksonline.com/libra
ry/view/git-essentials-livelessons/9780134655284/']
[debug] Encodings: locale cp1251, fs mbcs, out cp866, pref cp1251
[debug] youtube-dl version 2017.07.02
[debug] Python version 3.4.4 - Windows-7-6.1.7601-SP1
[debug] exe versions: none
[debug] Proxy map: {}
[safari:course] Downloading login form
[safari:course] Logging in as Username
[safari:course] 9780134655284: Downloading course JSON
[download] Downloading playlist: Git Essentials LiveLessons
[safari:course] playlist Git Essentials LiveLessons: Collected 37 video ids (dow
nloading 37 of them)
[download] Downloading video 1 of 37
[safari:api] Downloading login form
[safari:api] 9780134655284/gell_00_00: Downloading part JSON
[safari] Downloading login form
[safari] 9780134655284/gell_00_00: Downloading webpage
[safari] 9780134655284/gell_00_00: Downloading kaltura session JSON
[Kaltura] 9780134655284-gell_00_00: Downloading webpage
[Kaltura] 0_maiuqizt: Downloading video info JSON
[Kaltura] 0_maiuqizt: Downloading m3u8 information
[download] Downloading video 2 of 37
[safari:api] 9780134655284/gell_00_01: Downloading part JSON
[safari] 9780134655284/gell_00_01: Downloading webpage
[safari] 9780134655284/gell_00_01: Downloading kaltura session JSON
[Kaltura] 9780134655284-gell_00_01: Downloading webpage
[Kaltura] 0_27981zzm: Downloading video info JSON
[Kaltura] 0_27981zzm: Downloading m3u8 information
...
[download] Downloading video 13 of 37
[safari:api] 9780134655284/gell_02_06: Downloading part JSON
[safari] 9780134655284/gell_02_06: Downloading webpage
[safari] 9780134655284/gell_02_06: Downloading kaltura session JSON
[Kaltura] 9780134655284-gell_02_06: Downloading webpage
[Kaltura] 0_yqmv7qa8: Downloading video info JSON
[Kaltura] 0_yqmv7qa8: Downloading m3u8 information
[info] Writing video subtitles to: ...Git Essentials LiveLessons\13 - 2.6
Ignore things in Git.en.ttml
[download] Downloading video 14 of 37
[safari:api] 9780134655284/gell_03_00: Downloading part JSON
[safari] 9780134655284/gell_03_00: Downloading webpage
[safari] 9780134655284/gell_03_00: Downloading kaltura session JSON
[Kaltura] 9780134655284-gell_03_00: Downloading webpage
[Kaltura] 0_5pkf5w67: Downloading video info JSON
[Kaltura] 0_5pkf5w67: Downloading m3u8 information
...

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