Here is the example code from a Vimeo Embed that contains the uncovered "Blob URL".
Look for URLs with mp4 and token query included.
<!DOCTYPE html>
<html lang=en>
<head>
<meta charset=utf-8>
<meta name=viewport content="width=device-width,initial-scale=1,user-scalable=no">
<link rel=canonical href="https://vimeo.com/229653780">
<title>Cute Kittens from Teemu ToriTori on Vimeo</title>
<style>#player,.fallback,body,html,iframe{overflow:hidden;width:100%;height:100%;margin:0;padding:0}</style>
<!--[if IE]>
<script>var cacheBuster="?"+Math.round(Math.random()*1e3+(new Date).getTime());</script>
<![endif]-->
<body>
<div class=vp-placeholder>
<style>.vp-placeholder,.vp-placeholder-thumb,.vp-placeholder-thumb::after,.vp-placeholder-thumb::before{position:absolute;top:0;bottom:0;left:0;right:0}.vp-placeholder{visibility:hidden;background:#000;width:100%;max-height:100%;height:calc(1080 / 1920 * 100vw);max-width:calc(1920 / 1080 * 100vh);margin:auto}.vp-placeholder-carousel{display:none;background-color:#000;position:absolute;left:0;right:0;bottom:-60px;height:60px}</style>
<style>.vp-placeholder-thumb{overflow:hidden;width:100%;max-height:100%;margin:auto}.vp-placeholder-thumb::after,.vp-placeholder-thumb::before{content:"";display:block;filter:blur(7px);margin:0;background:url('https://i.vimeocdn.com/video/650018695.jpg?mw=80&q=70') 50% 50%/contain no-repeat}.vp-placeholder-thumb::before{margin:-30px}</style>
<div class=vp-placeholder-thumb></div>
<div class=vp-placeholder-carousel></div>
<script>(function(t){var i=t.querySelector(".vp-placeholder");var e=t.querySelector(".vp-placeholder-thumb");var r=parseInt("1920");var h=parseInt("1080");var c=new Image;c.onload=function(){var t=r/h;var a=this.width/this.height;if(a<=.95*t||a>=1.05*t){var l=i.getBoundingClientRect();var n=l.right-l.left;var o=l.bottom-l.top;var v=window.innerWidth/n*100;var c=window.innerHeight/o*100;e.style.height="calc("+this.height+" / "+this.width+" * "+v+"vw)";e.style.maxWidth="calc("+this.width+" / "+this.height+" * "+c+"vh)"}i.style.visibility="visible"};c.src="https://i.vimeocdn.com/video/650018695.jpg?mw=80&q=70";})(document);
</script>
</div>
<div id=player class=player>
<noscript>
<object id="flash-object" name="flash-object" type="application/x-shockwave-flash" width="100%" height="100%" data="/moog/229653780">
<param name="flashvars" value="clip_id=229653780&api=1&moogaloop_type=moogaloop&noscript">
<param name="movie" value="/moog/229653780?noscript">
<param name="allowfullscreen" value="true">
<param name="allowscriptaccess" value="always">
<param name="bgcolor" value="#000000">
<param name="wmode" value="opaque">
<param name="quality" value="high">
<param name="scalemode" value="noscale">
<div class="fallback">
<iframe src="/video/229653780/fallback?noscript" frameborder="0" title="Player Fallback Message"></iframe>
</div>
</object>
</noscript>
</div>
<script>(function(e,t){var a={"cdn_url":"https://f.vimeocdn.com","vimeo_api_url":"api.vimeo.com","view":1,"request":{"files":{"dash":{"separate_av":true,"streams":[{"profile":164,"quality":"360p","id":810237615,"fps":29},{"profile":174,"quality":"720p","id":810237616,"fps":29},{"profile":175,"quality":"1080p","id":810237614,"fps":29},{"profile":165,"quality":"540p","id":810237613,"fps":29}],"cdns":{"akfire_interconnect_quic":{"url":"https://181skyfiregce-vimeo.akamaized.net/exp=1518683232~acl=%2F229653780%2F%2A~hmac=78d93ef531d1dc38b3e3b285623be538bcf10c0552618139db944494823fe4c4/229653780/sep/video/810237615,810237616,810237614,810237613/master.json?base64_init=1","origin":"gcs"},"fastly_skyfire":{"url":"https://skyfire.vimeocdn.com/1518683232-0x5a8a9d0357fea8ec655ab95f8ad50bf6f25a18f7/229653780/sep/video/810237615,810237616,810237614,810237613/master.json?base64_init=1","origin":"gcs"}},"default_cdn":"fastly_skyfire"},"hls":{"separate_av":false,"default_cdn":"fastly_skyfire","cdns":{"akfire_interconnect_quic":{"url":"https://181skyfiregce-vimeo.akamaized.net/exp=1518683232~acl=%2F229653780%2F%2A~hmac=78d93ef531d1dc38b3e3b285623be538bcf10c0552618139db944494823fe4c4/229653780/video/810237615,810237616,810237614,810237613/master.m3u8?f=dash","origin":"gcs"},"fastly_skyfire":{"url":"https://skyfire.vimeocdn.com/1518683232-0x5a8a9d0357fea8ec655ab95f8ad50bf6f25a18f7/229653780/video/810237615,810237616,810237614,810237613/master.m3u8?f=dash","origin":"gcs"}}},"progressive":[{"profile":174,"width":1280,"mime":"video/mp4","fps":29,"url":"https://fpdl.vimeocdn.com/vimeo-prod-skyfire-std-us/01/930/9/229653780/810237616.mp4?token=1518683232-0x9c30fcbf3c9a584d7145829ace5c6fde93ac2a31","cdn":"fastly","quality":"720p","id":810237616,"origin":"gcs","height":720},{"profile":164,"width":640,"mime":"video/mp4","fps":29,"url":"https://fpdl.vimeocdn.com/vimeo-prod-skyfire-std-us/01/930/9/229653780/810237615.mp4?token=1518683232-0xc5494ef6c3989f342d818c9d98defb2e618f3445","cdn":"fastly","quality":"360p","id":810237615,"origin":"gcs","height":360},{"profile":175,"width":1920,"mime":"video/mp4","fps":29,"url":"https://fpdl.vimeocdn.com/vimeo-prod-skyfire-std-us/01/930/9/229653780/810237614.mp4?token=1518683232-0x542cec7afc8a4d42c8dedfc86a8b50e199de5fa9","cdn":"fastly","quality":"1080p","id":810237614,"origin":"gcs","height":1080},{"profile":165,"width":960,"mime":"video/mp4","fps":29,"url":"https://fpdl.vimeocdn.com/vimeo-prod-skyfire-std-us/01/930/9/229653780/810237613.mp4?token=1518683232-0x441f18d087d76d58487c7f615f25aa8c4f441b05","cdn":"fastly","quality":"540p","id":810237613,"origin":"gcs","height":540}]},"lang":"en","sentry":{"url":"https://9e9ab33f1870463393a4a1e85a1280c2@sentry.cloud.vimeo.com/2","enabled":false,"debug_enabled":true,"debug_intent":0},"ab_tests":{"manifest_retry":{"data":{"duration":2000},"group":true},"loading_animation":{"data":{},"group":"none"}},"referrer":null,"cookie_domain":".vimeo.com","timestamp":1518679332,"gc_debug":{"bucket":"vimeo-player-debug"},"expires":3600,"currency":"JPY","session":"5f2c5af2c20f4decf8dac391e05e3aa231942dc51518679332","cookie":{"scaling":1,"volume":1.0,"quality":null,"hd":0,"captions":null},"build":{"player":"","js":"2.68.14"},"urls":{"zeroclip_swf":"https://f.vimeocdn.com/p/external/zeroclipboard/ZeroClipboard.swf","fresnel":"https://fresnel.vimeocdn.com/add/player-stats","js":"https://f.vimeocdn.com/p/2.68.14/js/player.js","proxy":"https://player.vimeo.com/static/proxy.html","flideo":"https://f.vimeocdn.com/p/flash/flideo/1.0.6/flideo.swf","moog":"https://f.vimeocdn.com/p/flash/moogaloop/6.4.5/moogaloop.swf?clip_id=229653780","three_js":"https://f.vimeocdn.com/p/external/three.rvimeo.min.js","chromeless_css":"https://f.vimeocdn.com/p/2.68.14/css/chromeless.css","vuid_js":"https://f.vimeocdn.com/js_opt/modules/utils/vuid.min.js","chromeless_js":"https://f.vimeocdn.com/p/2.68.14/js/chromeless.js","moog_js":"https://f.vimeocdn.com/p/2.68.14/js/moogaloop.js","zeroclip_js":"https://f.vimeocdn.com/p/external/zeroclipboard/ZeroClipboard-patch.js","css":"https://f.vimeocdn.com/p/2.68.14/css/player.css"},"signature":"a5aee04449569a84d10657b536c5fbb4","flags":{"dnt":0,"preload_video":"metadata_on_hover","plays":1,"webp":1,"flash_hls":1,"android_inline":0,"log_to_es":1,"partials":0,"autohide_controls":0},"country":"JP"},"player_url":"player.vimeo.com","video":{"rating":{"id":6},"version":{"current":null,"available":null},"height":1080,"duration":12,"thumbs":{"1280":"https://i.vimeocdn.com/video/650018695_1280.jpg","960":"https://i.vimeocdn.com/video/650018695_960.jpg","640":"https://i.vimeocdn.com/video/650018695_640.jpg","base":"https://i.vimeocdn.com/video/650018695"},"owner":{"account_type":"basic","name":"Teemu ToriTori","img":"https://secure.gravatar.com/avatar/43b3f014258e7fe055d8b88f15b90d7b?d=https%3A%2F%2Fi.vimeocdn.com%2Fportrait%2Fdefaults-blue_60x60.png&s=60","url":"https://vimeo.com/user12691508","img_2x":"https://secure.gravatar.com/avatar/43b3f014258e7fe055d8b88f15b90d7b?d=https%3A%2F%2Fi.vimeocdn.com%2Fportrait%2Fdefaults-blue_120x120.png&s=120","id":12691508},"file_codecs":{"hevc":{"hdr":[],"sdr":[]},"avc":[810237616,810237615,810237614,810237613]},"id":229653780,"embed_code":"
<iframe src=\"https://player.vimeo.com/video/229653780\" width=\"640\" height=\"360\" frameborder=\"0\" webkitallowfullscreen mozallowfullscreen allowfullscreen><\/iframe>","title":"Cute Kittens","share_url":"https://vimeo.com/229653780","width":1920,"embed_permission":"public","fps":29.97,"spatial":0,"live_event":null,"allow_hd":1,"hd":1,"lang":null,"default_to_hd":0,"url":"https://vimeo.com/229653780","privacy":"anybody","unlisted_hash":null},"build":{"player":"","rpc":"dev"},"embed":{"autopause":1,"settings":{"fullscreen":1,"byline":1,"like":1,"playbar":1,"title":1,"color":0,"branding":1,"share":1,"scaling":1,"logo":1,"spatial_compass":1,"collections":0,"info_on_pause":0,"watch_later":1,"portrait":1,"embed":1,"badge":0,"spatial_label":1,"speed":0,"volume":1},"color":"00adef","on_site":0,"dnt":0,"outro":"promoted","cards":null,"api":3,"editor":false,"context":"embed.main","time":0,"player_id":"","transparent":1,"log_plays":1,"quality":null,"email":null,"loop":0,"autoplay":0},"vimeo_url":"vimeo.com","user":{"vimeo_api_interaction_tokens":null,"liked":0,"account_type":"none","vimeo_api_client_token":null,"progress":0,"owner":0,"watch_later":0,"logged_in":0,"id":0,"mod":0}};if(!a.request){return}if(typeof a.request==="object"&&"error"in a.request){if("html"in a.request){e.documentElement.innerHTML=a.request.html.replace(/</g,"<").replace(/>/g,">")}return}var r=function(){try{return window.self!==window.top}catch(e){return true}}();if(!r&&/twitter/i.test(navigator.userAgent)&&a.video.url){window.location=a.video.url}if(a.request.lang){e.documentElement.setAttribute("lang",a.request.lang)}var n="exitFullscreen"in e||"webkitExitFullscreen"in e||"webkitCancelFullScreen"in e||"mozCancelFullScreen"in e||"msExitFullscreen"in e||"webkitEnterFullScreen"in e.createElement("video");var i=function(){var e=navigator;var t="Shockwave Flash";var a="application/x-shockwave-flash";var r="ShockwaveFlash.ShockwaveFlash";if(typeof e.plugins!=="undefined"&&typeof e.plugins[t]==="object"){if(e.plugins[t].description&&!(typeof e.mimeTypes!=="undefined"&&e.mimeTypes[a]&&!e.mimeTypes[a].enabledPlugin)){return true}}try{if(window.ActiveXObject&&new ActiveXObject(r)){return true}}catch(e){}return false}();var o=function(){var t=e.createElement("video");return{h264:"canPlayType"in t&&t.canPlayType("video/mp4")!=="",textTracks:typeof TextTrackList!=="undefined"&&typeof t.textTracks!=="undefined"&&t.textTracks instanceof TextTrackList}}();var s=function(){var t=e.createElement("div");t.innerHTML="
<svg/>";return(t.firstChild&&t.firstChild.namespaceURI)==="http://www.w3.org/2000/svg"}();var l=/MSIE 9/.test(navigator.userAgent)&&/Windows Phone/.test(navigator.userAgent);var c=/IE 10/.test(navigator.userAgent);var u=n||c||l;var d=e.getElementsByTagName("script")[0];var f=e.createElement("script");var m=false;var p=false;if("text_tracks"in a.request&&(!o.textTracks||o.textTracks&&!o.h264)&&i){u=false}if(!s){u=false}var v="vod"in a.video&&a.video.vod.is_feature;if(v&&i&&("files"in a.request&&!a.request.files.dash)){u=false}if(!u){var g=e.querySelector(".vp-placeholder");if(g&&g.parentNode){g.parentNode.removeChild(g)}}if(u){t.className="player loading";var h=(new Date).getTime();f.src=a.request.urls.js;d.parentNode.insertBefore(f,d);f["onreadystatechange"in f?"onreadystatechange":"onload"]=function(){if(!m&&(!this.readyState||this.readyState==="loaded"||this.readyState==="complete")){m=true;p=new VimeoPlayer(t,a,y||{link:w,startTime:h})}};var y=false;var w=e.createElement("link");w.rel="stylesheet";w.href=a.request.urls.css+(typeof cacheBuster==="undefined"?"":cacheBuster);e.getElementsByTagName("head")[0].appendChild(w);w.onload=function(){y=true}}else if(i){t.innerHTML='
<object id="flash-object" name="flash-object" type="application/x-shockwave-flash" width="100%" height="100%" data="'+a.request.urls.moog+"&z="+(new Date).getTime()+'">
<param name="flashvars" value="clip_id='+a.video.id+"&embed_location="+encodeURIComponent(a.request.referrer)+'&js_getConfig=getConfig&js_setConfig=setConfig&js_onLoad=onMoogaloopLoaded&api=1&moogaloop_type=moogaloop">
<param name="movie" value="'+a.request.urls.moog+"&z="+(new Date).getTime()+'">
<param name="allowfullscreen" value="true">
<param name="allowscriptaccess" value="always">
<param name="bgcolor" value="#000000">
<param name="wmode" value="opaque">
<param name="quality" value="high">
<param name="scalemode" value="noscale">
</object>';var T=false;var q=e.getElementById("flash-object");window.onMoogaloopLoaded=function(){T=true;if(!p&&m){t.className="player";p=new VimeoPlayer(q,a)}};window.getConfig=function(){return a};window.setConfig=function(e){a=e};f.src=a.request.urls.moog_js;d.parentNode.insertBefore(f,d);f["onreadystatechange"in f?"onreadystatechange":"onload"]=function(){if(!m&&(!this.readyState||this.readyState==="loaded"||this.readyState==="complete")){m=true;if(!p&&T){p=new VimeoPlayer(q,a)}}}}else{t.innerHTML='
<div class="fallback">
<iframe src="/video/229653780/fallback?js&referrer='+encodeURIComponent(a.request.referrer)+'" frameborder="0"></iframe>
</div>'}if(!a.request.flags.dnt&&!a.embed.dnt){window._vuid=[["pid",a.request.session]];var b=e.createElement("script");b.async=true;b.src=a.request.urls.vuid_js;d.parentNode.insertBefore(b,d)}})(document,document.getElementById("player"));
</script>
Sourced from here: http://webhostwhat.github.io/jekyll/update/2017/08/15/cute-kittens-vimeo-embed.html
