{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com/data/attach/logo/logo.png', '推荐 爷的心禁止访问 的问题《Video content missing from Chrome Developer Tools》','https://www.manongdao.com/q-1317919.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
The following website: http://www.themedept.com/demo/getleads/agency.html
Shows a looping video: http://www.themedept.com/demo/getleads/images/video/video.mp4
Why does this video video not appear in the Chrome Browser Developer Network Tools Tab:
Additional Information: The video is called via Javascript which adds the following element to the page
<video autoplay="" loop="" muted="" style="margin: auto; position: absolute; z-index: -1; top: 50%; left: 50%; transform: translate(-50%, -50%); visibility: visible; width: 1352px; height: auto;"><source src="images/video/video.mp4" type="video/mp4"><source src="images/video/video.webm" type="video/webm"><source src="images/video/video.ogv" type="video/ogg"></video>
The Javascript that called this is from the file: http://www.themedept.com/demo/getleads/js/plugins/jquery.vide.min.js
I have the same issue (Chrome 54.0.2840.99 m) but I found that it at least works in an incognito session.
It seems that Chrome Dev Tools is not respecting the "Disable cache" setting for videos.
The same problem in Mozilla FireFox. You can use Private Window in FireFox for video src request. Or Incognito in Chrome.