Also stumbled upon this issue with our IRC bot.
The bot fetches the url to extract the title to provide context for other people in the channel.
Because the title is not in the original html but presumably updated later from client side code, the bot cannot show the video title.
Most messenger apps seem to read opengraph data and show the title correctly.
This is an example from our channel, GlaDOS is the bot that fetches the titles for the url and the first time it works as expected, the second time not so much.
Running
curl https://peertube.video/videos/watch/41dd1087-c2bb-48d9-9c5c-071119b61ac1
returns
[...]
<title>PeerTube.video</title>
[...]
<meta property="og:type" content="video" /><meta property="og:title" content="Introducing GNOME 3.30: “Almería”" />
[...]
So the fix would be to use the og:title contents also in the
html tag (or make bots read the og:title tag).</p>
<p>I hope this actually is the same problem and this explanation is sufficient to reopen the issue.</p>
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<strong>wirew0rm</strong>
<span class="text-muted ml-1">on 11 Sep 2018</span>
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👍<span class="ml-2 mr-3">3</span>
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<p>Thanks <strong>@wirew0rm</strong> - that's enough to investigate indeed</p>
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<strong>rigelk</strong>
<span class="text-muted ml-1">on 11 Sep 2018</span>
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👍<span class="ml-2 mr-3">3</span>
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<p>Not the cleanest but if you:</p>
<ul>
<li>comment out lines 29 - 30 in /server/lib/client-html.ts</li>
</ul>
<pre><code class="prettyprint"> html = ClientHtml.addTitleTag(html)
html = ClientHtml.addDescriptionTag(html)
</code></pre>
<ul>
<li>replace line 178 in /server/lib/client-html.ts with:</li>
</ul>
<pre><code class="prettyprint"> const titleTag = '<title>' + videoNameEscaped + '</title>';
const descriptionTag = `<meta name="description" content="${videoDescriptionEscaped}" />`;
return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.OPENGRAPH_AND_OEMBED, tagsString).replace(CUSTOM_HTML_TAG_COMMENTS.TITLE, titleTag).replace(CUSTOM_HTML_TAG_COMMENTS.DESCRIPTION, descriptionTag);
</code></pre>
<p>...that should change the title and description to what they should be.</p>
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<strong>c-prompt</strong>
<span class="text-muted ml-1">on 29 Nov 2018</span>
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<p>I fixed it in <a rel="nofollow noopener" target="_blank" href="https://github.com/Chocobozzz/PeerTube/commit/9aac44236c84f17b14ce35e358a87389766e2743">https://github.com/Chocobozzz/PeerTube/commit/9aac44236c84f17b14ce35e358a87389766e2743</a></p>
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<strong>Chocobozzz</strong>
<span class="text-muted ml-1">on 10 Jan 2019</span>
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🎉<span class="ml-2 mr-3">2</span>
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<p>thanks! <strong>@Chocobozzz</strong> </p>
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<strong>r3k2</strong>
<span class="text-muted ml-1">on 11 Jan 2019</span>
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r3k2
rigelk
on 31 Mar 2018
Most helpful comment
Thanks @wirew0rm - that's enough to investigate indeed