Here is the console output when it starts. Looks like a cdn from justpremium.com which is an advertising site.
jpx.all.Wp.js:1 (00:05:420.30)JExecution: Ad:wp[22:379380] shown.
jpx.all.Wp.js:1
(https://cdn-cf.justpremium.com/js/v2.10.180/jpx.all.Wp.js:1:10989)
jcl.v2.min.js?v=1:13 Jcl: Jcl: bg target loaded
jcl.v2.min.js?v=1:13 Jcl: Jcl: left target loaded
jcl.v2.min.js?v=1:13 Jcl: Jcl: right target loaded
jcl.v2.min.js?v=1:13 Jcl: Jcl: top target loaded
jp-controls.js:5 [object HTMLVideoElement] has no poster frame!
p.init @ jp-controls.js:5
r @ jp-controls.js:5
(anonymous) @ jp-controls.js:5
(anonymous) @ jp-controls.js:5
(index):44 play fired; there is 1 tracker available.
(index):44 {firstQuartile: false, midpoint: false, thirdQuartile: false, play: true}
(index):44 not set
(index):44 firstQuartile fired; there is 1 tracker available.
(index):44 {firstQuartile: true, midpoint: false, thirdQuartile: false, play: true}
(index):44 firstQuartile fired; there is 1 tracker available.
(index):44 {firstQuartile: true, midpoint: false, thirdQuartile: false, play: true}
(index):44 midpoint fired; there is 1 tracker available.
(index):44 {firstQuartile: true, midpoint: true, thirdQuartile: false, play: true}
(index):44 midpoint fired; there is 1 tracker available.
(index):44 {firstQuartile: true, midpoint: true, thirdQuartile: false, play: true}