vimeo video in shadowbox now fails

Hello Michael et alia,
Here's a js invocation of shadowbox that used to work and now fails.

function sbInteriorVideo(clipId){
    var clipID = clipId

    $("#sb-body, #sb-loading").css({"background-color": "black"});
    $("#sb-loading-inner span").css({"color": "white"});

    Shadowbox.open({
        options: {
            flashVars:{clip_id:clipID, autoplay:'true', fullscreen: 'true'},
            enableKeys: false,
            overlayColor: '#505',
            overlayOpacity: 0.3,
            resizeDuration: 0.5,
            onClose: function(){
                $("#sb-body, #sb-loading").css({"background-color": "white"});
                $("#sb-loading-inner span").css({"color": "#800"});
            }
        },
        player: 'swf',
        width: 853,
        height: 480,
        content: 'http://vimeo.com/moogaloop.swf'
    });
};

Vimeo's familiar video box appears in a shadowbox, but no video stream, and my console reports:
GET https://11-lvl3-hls.vimeocdn.com/1458682415-0da4e690a70c1a438ada4a889dd0e17dfbb749dd/01/3106/0/15530602/29638816.mp4.m3u8 404 (Not Found)

even though I've verified that there is a video at vimeo with that clipID
shadowbox-js.com seems to be down and I'm fumbling around trying to figure out a fix; any clues?

Start with the sbInteriorVideo function and Shadowbox.open configuration shown in the report, then reproduce the Vimeo request and inspect the player integration. Determine whether the failure is in Shadowbox or Vimeo's external stream; done means a verified fix for the reported clip or a documented incompatibility.