Until facebook forces its app to run in the background again by &quot;accidentally&quot; playing silent audio to get around that setting.[1]<p><a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;iphone&#x2F;comments&#x2F;3opxhm&#x2F;facebook_app_appears_to_use_silent_audio_for&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;iphone&#x2F;comments&#x2F;3opxhm&#x2F;facebook_app...</a>