Azure Media Services, the underlying service that underpins the player hosted on a docs.microsoft.com page, is not giving the full URL, but rather doing the smart thing and pre-buffering only the necessary parts (that is, within immediate play reach). <?xml version="1.0" encoding="utf-8"?> <MPD mediaPresentationDuration= "PT1H3M8.096S" minBufferTime= "PT3S" profiles= "urn:mpeg💨profile:isoff-live:2011" type= "static" xmlns= "urn:mpeg💨schema:mpd:2011" xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" > <Period> <AdaptationSet bitstreamSwitching= "false" codecs= "avc1.4d4028" contentType= "video" group= "1" id= "1" maxHeight= "1080" maxWidth= "1920" mimeType= "video/mp4" profiles= "ccff" segmentAlignment= "true" startWithSAP= "1" > <SegmentTemplate initialization=…