CBC video player is in an iframe, ytdl only download trailer on main webpage

[Extarys]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2019.09.12.1
• 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 -svC https://www.cbc.ca/firsthand/episodes/i-pedophile
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-svC', u'https://www.cbc.ca/firsthand/episodes/i-pedophile']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.09.12.1
[debug] Python version 2.7.15+ (CPython) - Linux-5.0.0-23-generic-x86_64-with-LinuxMint-19.2-tina
[debug] exe versions: ffmpeg 3.4.6, ffprobe 3.4.6
[debug] Proxy map: {}
[debug] Public IP address: *************
[cbc.ca] i-pedophile: Downloading webpage
[download] Downloading playlist: Look At The Underworld of Pedophiles And New Therapies to Keep Children Safe From Victimization
[cbc.ca] playlist Look At The Underworld of Pedophiles And New Therapies to Keep Children Safe From Victimization: Collected 1 video ids (downloading 1 of them)
[download] Downloading video 1 of 1
[ThePlatform] 2684676075: Downloading SMIL data
[ThePlatform] 2684676075: Checking video URL
[ThePlatform] 2684676075: Checking video URL
[ThePlatform] 2684676075: Checking video URL
[ThePlatform] 2684676075: Checking video URL
[ThePlatform] 2684676075: Checking video URL
[ThePlatform] 2684676075: Checking video URL
[ThePlatform] 2684676075: Downloading JSON metadata
[debug] Default format spec: bestvideo+bestaudio/best
[download] Finished downloading playlist: Look At The Underworld of Pedophiles And New Therapies to Keep Children Safe From Victimization

Description

Only the "trailer" is downloaded ~1:32. I need to click on the image on the webpage for the actual video to start playing.

Last minute doing this I found the actual video webpage is in an iframe: https://watch.cbc.ca/embed/38e815a-00b1d606222. youtube-dl should search for that URI before downloading.

Doing youtube-dl -v https://watch.cbc.ca/embed/38e815a-00b1d60622 downloaded the entire video properly.