YouTube stop video download – Userscripts.org <link rel="shortcut icon" href="/images/script_icon.png" type="image/x-icon" /> <link href="http://static.userscripts.org/stylesheets/display.css?1227340079" media="screen" rel="stylesheet" type="text/css" /> <script src="http://static.userscripts.org/javascripts/prototype.js?1227340079" type="text/javascript"></script> <script src="http://static.userscripts.org/javascripts/effects.js?1227340079" type="text/javascript"></script> <script src="http://static.userscripts.org/javascripts/lowpro.js?1227340079" type="text/javascript"></script> <script src="http://static.userscripts.org/javascripts/application.js?1227340079" type="text/javascript"></script> <link href="/topics/1220.rss" rel="alternate" title="Subscribe to 'YouTube stop video download'" type="application/rss+xml" /> </head> <body> <div id="header"> <ul id="mainmenu"> <li><a href="/articles" rel="nofollow">Blog</a></li> <li><a href="/scripts" rel="nofollow">Scripts</a></li> <li><a href="/forums" rel="nofollow">Forums</a></li> <li><a href="/users" rel="nofollow">People</a></li> <li><a href="/signup" rel="nofollow">Signup</a></li> <li><a href="/login" rel="nofollow">Login</a></li> </ul> <h1><a href="/" title="Userscripts.org"><img alt="Userscripts.org" src="http://static.userscripts.org/images/userscripts.org.png?1227340079" /></a></h1> </div> <div id="container"> <div id="content"> <div class="crumbs"> <a href="/forums">Forums</a> <span class="arrow">→</span> <a href="/forums/1">Script development</a> <span class="arrow">→</span> </div> <h1 id="topic-title"> YouTube stop video download </h1> <p class="subtitle"> <a href="/topics/1220.rss"><img alt="Subscribe to YouTube stop video download" height="14" src="http://static.userscripts.org/images/feed-icon.png?1227340079" width="14" /></a> 7 posts, 5 voices </p> <a name="posts-4621" id="posts-4621"> </a> <table border="0" cellspacing="0" cellpadding="0" class="posts wide"> <tr class="post hentry " id="4621-row"> <td class="author vcard"> <div class="date"> <a href="#posts-4621" rel="bookmark"> <abbr class="updated" title="2007-10-27T16:14:57-05:00"> Oct 27, 2007 4:14pm </abbr> </a> </div> <img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=926cdaca5f2093266b98d6f4f496292c&rating=PG&size=32&default=identicon" width="32" /> <span class="fn"><a href="/users/26957" class="admin" rel="nofollow">Yansky</a></span> <span class="role"> Scriptwright </span> </td> <td class="body entry-content" id="post-body-4621">  <p>re: <a href="http://userscripts.org/scripts/show/7917">http://userscripts.org/scripts/show/7917</a></p> <p>When youtube streams a video to its default player, it does a redirect from the <a href="http://youtube.com/get_video?video_id">http://youtube.com/get_video?video_id</a>= location to something like <a href="http://chi-v217.chi.youtube.com">http://chi-v217.chi.youtube.com</a> which then streams the video data. </p> <p>You can use the same-domain restrictions of javascript to stop before it redirects and get the redirection address from the headers (there's also an extra redirect when the video is from cache.googlevideo.com). You can then add this address to a simple embed code and then use another remotely hosted flash player that supports buffering with autostart disabled.</p> <p>One strange thing I noticed is that for some reason the normal non-GM xmlhttprequest still allows cross-domain GET's when you use it in greasemonkey. I've used jQuery as a temporary solution. I'm not really sure why using jQuery enforces the same-domain restriction.</p> <p>Here's my code (it probably needs a bit of polishing :-) <a href="http://pastebin.ca/751901">http://pastebin.ca/751901</a></p> </td> </tr> <tr class="spacer"> <td colspan="2"> <a name="posts-4622" id="posts-4622"> </a> </td> </tr> <tr class="post hentry " id="4622-row"> <td class="author vcard"> <div class="date"> <a href="#posts-4622" rel="bookmark"> <abbr class="updated" title="2007-10-27T19:57:02-05:00"> Oct 27, 2007 7:57pm </abbr> </a> </div> <img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=bb17d724c0274cb5743116895de49a95&rating=PG&size=32&default=identicon" width="32" /> <span class="fn"><a href="/users/27110" rel="nofollow">Descriptor</a></span> <span class="role"> Scriptwright </span> </td> <td class="body entry-content" id="post-body-4622">  <blockquote>for some reason the normal non-GM xmlhttprequest still allows cross-domain GET</blockquote><p>Maybe it's actually the same as the GM method (maybe GM_ is a convenience name); and it's a chrome-privileged XMLHttpRequest object: <a href="http://wiki.greasespot.net/GM_xmlhttpRequest">http://wiki.greasespot.net/GM_xmlhttpRequest</a></p><p>I was thinking about youtube the other day, but after seeing how bad the quality of the videos were I figured it wasn't worth the hassle, think I found the URL and the video in the cache but don't have an FLV player. But I was wondering - will the script still work if I don't have the Flash plugin? The ones I viewed loaded a swf file, which would contain the URL of the actual movie, and load it when you clicked on the plugin's "Play" button. So how could Greasemonkey intercept the request which isn't anywhere in the DOM? I just wanted to save the movie and watch it offline.</p> </td> </tr> <tr class="spacer"> <td colspan="2"> <a name="posts-4627" id="posts-4627"> </a> </td> </tr> <tr class="post hentry " id="4627-row"> <td class="author vcard"> <div class="date"> <a href="#posts-4627" rel="bookmark"> <abbr class="updated" title="2007-10-27T22:18:21-05:00"> Oct 27, 2007 10:18pm </abbr> </a> </div> <img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=926cdaca5f2093266b98d6f4f496292c&rating=PG&size=32&default=identicon" width="32" /> <span class="fn"><a href="/users/26957" class="admin" rel="nofollow">Yansky</a></span> <span class="role"> Scriptwright </span> </td> <td class="body entry-content" id="post-body-4627">  <p><blockquote>Maybe it's actually the same as the GM method (maybe GM_ is a convenience name); and it's a chrome-privileged XMLHttpRequest object: <a href="http://wiki.greasespot.net/GM_xmlhttpRequest">http://wiki.greasespot.net/GM_xmlhttpRequest</a></blockquote></p> <p>Could be. I tried "new unsafeWindow.XMLHttpRequest();" , but that gave me an error, so I tried "new window.wrappedJSObject.XMLHttpRequest();" which didn't give me an error, but also didn't seem to restrict the request to the same domain.</p> <p>I've posted a question to the greasemonkey google groups, so hopefully someone has the answer: <a href="http://groups.google.com/group/greasemonkey-users/browse_thread/thread/25007504aef143a3">http://groups.google.com/group/greasemonkey-use...</a></p> </td> </tr> <tr class="spacer"> <td colspan="2"> <a name="posts-4653" id="posts-4653"> </a> </td> </tr> <tr class="post hentry " id="4653-row"> <td class="author vcard"> <div class="date"> <a href="#posts-4653" rel="bookmark"> <abbr class="updated" title="2007-10-29T22:20:01-05:00"> Oct 29, 2007 10:20pm </abbr> </a> </div> <img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=068b7fb5725f061512446cf09aa0599e&rating=PG&size=32&default=identicon" width="32" /> <span class="fn"><a href="/users/20871" rel="nofollow">lazyttrick</a></span> <span class="role"> Scriptwright </span> </td> <td class="body entry-content" id="post-body-4653">  <p>great idea, I'll try it, thanks :-)</p> </td> </tr> <tr class="spacer"> <td colspan="2"> <a name="posts-4810" id="posts-4810"> </a> </td> </tr> <tr class="post hentry " id="4810-row"> <td class="author vcard"> <div class="date"> <a href="#posts-4810" rel="bookmark"> <abbr class="updated" title="2007-11-06T16:15:35-06:00"> Nov 6, 2007 4:15pm </abbr> </a> </div> <img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=34655583d4006fdef6e05aea89d2e2c1&rating=PG&size=32&default=identicon" width="32" /> <span class="fn"><a href="/users/36137" rel="nofollow">Miccovin</a></span> <span class="role"> User </span> </td> <td class="body entry-content" id="post-body-4810">  <p>Hi, thanks for this Snippet. Did you realize a working script?</p> <p>I think, we need 2 more things: <br />- a Play-Button <br />- a progress bar</p> </td> </tr> <tr class="spacer"> <td colspan="2"> <a name="posts-4961" id="posts-4961"> </a> </td> </tr> <tr class="post hentry " id="4961-row"> <td class="author vcard"> <div class="date"> <a href="#posts-4961" rel="bookmark"> <abbr class="updated" title="2007-11-16T23:15:24-06:00"> Nov 16, 2007 11:15pm </abbr> </a> </div> <img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=926cdaca5f2093266b98d6f4f496292c&rating=PG&size=32&default=identicon" width="32" /> <span class="fn"><a href="/users/26957" class="admin" rel="nofollow">Yansky</a></span> <span class="role"> Scriptwright </span> </td> <td class="body entry-content" id="post-body-4961">  <p><blockquote> Hi, thanks for this Snippet. Did you realize a working script?I think, we need 2 more things:- a Play-Button- a progress bar </blockquote></p> <p><a href="http://userscripts.org/scripts/show/13955">http://userscripts.org/scripts/show/13955</a></p> </td> </tr> <tr class="spacer"> <td colspan="2"> <a name="posts-5179" id="posts-5179"> </a> </td> </tr> <tr class="post hentry " id="5179-row"> <td class="author vcard"> <div class="date"> <a href="#posts-5179" rel="bookmark"> <abbr class="updated" title="2007-11-28T10:22:20-06:00"> Nov 28, 2007 10:22am </abbr> </a> </div> <img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=966d5b5ddddceef2a7012587cccbec42&rating=PG&size=32&default=identicon" width="32" /> <span class="fn"><a href="/users/32846" rel="nofollow">silver09</a></span> <span class="role"> User </span> </td> <td class="body entry-content" id="post-body-5179">  <p>Hi, </p> <p>tried your script but I keep getting uncaught "exception: Permission denied to call method XMLHttpRequest.open".</p> <p>is there something I am missing?</p> <p>Thanks.</p> </td> </tr> </table> </div> <div id="right"> <form action="/posts/search" class="search" method="get"><p><label for="q" id="q_label">Search all posts</label><input id="q" name="q" type="text" /></p></form> <h5>Voices</h5> <a href="/users/26957" rel="nofollow" title="Yansky"><img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=926cdaca5f2093266b98d6f4f496292c&rating=PG&size=32&default=identicon" width="32" /></a></li> <a href="/users/27110" rel="nofollow" title="Descriptor"><img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=bb17d724c0274cb5743116895de49a95&rating=PG&size=32&default=identicon" width="32" /></a></li> <a href="/users/20871" rel="nofollow" title="lazyttrick"><img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=068b7fb5725f061512446cf09aa0599e&rating=PG&size=32&default=identicon" width="32" /></a></li> <a href="/users/36137" rel="nofollow" title="Miccovin"><img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=34655583d4006fdef6e05aea89d2e2c1&rating=PG&size=32&default=identicon" width="32" /></a></li> <a href="/users/32846" rel="nofollow" title="silver09"><img alt="" class="photo" height="32" src="http://www.gravatar.com/avatar.php?gravatar_id=966d5b5ddddceef2a7012587cccbec42&rating=PG&size=32&default=identicon" width="32" /></a></li> <h5>Sponsored links</h5> <script type="text/javascript"> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"></script> </div> <script type="text/javascript"> //<![CDATA[ if ($('q')) { $('q_label').hide(); Event.observe('q', 'focus', function(e) { if (this.value == $('q_label').innerHTML) { this.value = ""; this.style.color = null; } }); function q_show_label(e) { if (this.value == "" || this.value == $('q_label').innerHTML) { this.value = $('q_label').innerHTML; this.style.color = "#888"; } } Event.observe('q', 'blur', q_show_label); q_show_label.call($('q')); // Event.trigger didn't work } //]]> </script> <br style="clear:both;" /> </div> <div id="footer"> <p> <strong class="disclaim">Because it's your web.</strong> <em class="credit">A <a href="http://tr.emendo.us" rel="nofollow">tremendous</a> project with the help from our <a href="/users/contributers" rel="nofollow">friends</a>.</em> </p> </div> <script src="http://www.google-analytics.com/urchin.js" type="text/javascript"></script> <script type="text/javascript"> _uacct = "UA-50927-4"; urchinTracker(); </script> <script type="text/javascript" src="/mint/?js"></script> <script type="text/javascript"> _qoptions={ qacct:"p-6eWjYgYdo7Su6" }; </script> <script type="text/javascript" src="http://edge.quantserve.com/quant.js"></script> <noscript><img src="http://pixel.quantserve.com/pixel/p-6eWjYgYdo7Su6.gif" style="display: none;" border="0" height="1" width="1" alt="Quantcast"/></noscript> <script src="http://userscripts.uservoice.com/widgets/tab.js?alignment=right&color=f18705" type="text/javascript"></script> </body> <script type="text/javascript"></script> </html>