Environment:
Browser / Version: Firefox Nightly 201102 (🦎 84.0a1-20201101092255)
Operating System: Samsung Galaxy S8 (Android 9) - 1440 x 2960 pixels, 18.5:9 ratio (~570 ppi density), Huawei P20 Lite (Android 8.0.0) - 1080 x 2280 pixels, 19:9 ratio (~432 ppi density)

Steps to reproduce:

1. Navigate to https://larepublica.pe/sociedad/2020/10/31/lince-techo-basurero-es-foco-infeccioso-en-edificio-pero-duena-se-niega-a-retirarlo/
2. Scroll down the page (until reaching "... que alberga su ligero techo.").
3. Observe the page.

Expected Behavior:
Embedded video is displayed and can be played.

Actual Behavior:
Embedded video is not displayed.

Notes:

1. Screenshot attached.
2. The issue is not reproducible with ETP - Standard enabled.

This breakage is becuase we block securepubads.g.doubleclick.net, video.sekindo.com, and live.sekindo.com. The video will be displayed if we add these three origins into the antitracking skipURLS.

The layout has changed and the video is no longer available on the page regardless if ETP is Strict, Standard or disabled.
https://prnt.sc/106m3wv

I was able to find an article where the video is not available ti ETP - Strict.
URL: https://larepublica.pe/politica/2021/02/24/en-vivo-conferencia-de-prensa-pcm-informa-sobre-extension-de-la-cuarentena-y-la-vacuna-covid-19/
https://prnt.sc/106mb6t

Tested with:
Browser / Version: Firefox Nightly 210224 (🦎 87.0a1-20210222084406)
Operating System: Samsung Galaxy S8 (Android 9) - 1440 x 2960 pixels, 18.5:9 ratio (~570 ppi density)

The broken video that I see now is a long way down the page, under the "Minuto a minuto de la conferencia de la PCM" sub-heading on https://larepublica.pe/politica/2021/02/24/en-vivo-conferencia-de-prensa-pcm-informa-sobre-extension-de-la-cuarentena-y-la-vacuna-covid-19/

It's a Facebook video; we'll need to provide a way to opt into viewing it by yellowlisting at least:

https://www.facebook.com/plugins/video.php
https://m.facebook.com/plugins/video.php