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`Onebox.preview` can return 0-to-n errors, where the errors are missing OpenGraph attributes (e.g. title, description, image, etc.). If any of these attributes are missing, we construct an error message and attach it to the Oneboxer preview HTML. The error message is something like: “Sorry, we were unable to generate a preview for this web page, because the following oEmbed / OpenGraph tags could not be found: description, image” However, if the only missing tag is `image` we don’t need to display the error, as we have enough other data (title, description, etc.) to construct a useful/complete Onebox.
61 lines
2.6 KiB
Plaintext
61 lines
2.6 KiB
Plaintext
<!doctype html>
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<html lang="en">
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<head prefix="og: http://ogp.me/ns#">
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<title>Open Graph protocol examples</title>
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<meta property="og:type" content="website">
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<meta property="og:locale" content="en_US">
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<meta property="og:title" content="Open Graph protocol examples">
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<meta property="og:description" content="this is bodycontent">
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<meta property="og:site_name" content="Open Graph protocol examples">
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<meta property="og:determiner" content="the">
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<meta property="og:url" content="http://examples.opengraphprotocol.us/">
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<link rel="author" href="http://www.niallkennedy.com/">
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<link rel="icon shortcut" type="image/vnd.microsoft.icon" href="/favicon.ico" sizes="16x16">
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<link rel="icon" type="image/png" href="/media/images/icon.png" sizes="16x16">
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</head>
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<body itemscope itemtype="http://schema.org/WebPage">
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<header><h1 itemprop="name">Open Graph protocol examples</h1></header>
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<div role="main">
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<p itemprop="description">Examples of Open Graph protocol markup.</p>
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<section id="standard">
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<header><h2>Open Graph namespace</h2></header>
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<ul>
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<li><a href="/min.html">Missing required properties</a></li>
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<li><a href="/required.html">Required properties</a></li>
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<li><a href="/nomedia.html">Most properties, no media</a></li>
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<li><a href="/canadian.html">Canadian (en_CA)</a></li>
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<li>Images<ul>
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<li><a href="/image.html">Structured image</a></li>
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<li><a href="/image-url.html">Structured image w/ image:url</a></li>
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<li><a href="/image-array.html">Structured image array</a></li>
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<li><a href="/image-toosmall.html">One-pixel structured image</a></li></ul></li>
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<li>Audio<ul>
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<li><a href="/audio.html">Structured audio</a></li>
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<li><a href="/audio-url.html">Structured audio w/ audio:url</a></li>
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<li><a href="/audio-array.html">Structured audio array</a></li></ul></li>
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<li>Video<ul>
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<li><a href="/video.html">Structured video</a></li>
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<li><a href="/video-array.html">Structured video array</a></li></ul></li>
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</ul>
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</section>
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<section id="objects">
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<header><h2>Global object namespace</h2></header>
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<ul>
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<li><a href="/article.html">Article</a></li>
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<li><a href="/article-utc.html">Article w/ UTC datetime</a></li>
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<li><a href="/article-offset.html">Article w/ UTC offset</a></li>
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<li><a href="/book.html">Book</a></li>
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<li><a href="/book-isbn10.html">Book w/ ISBN-10</a></li>
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<li><a href="/profile.html">Profile</a></li>
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<li><a href="/video-movie.html">Video movie</a></li>
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</ul>
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</section>
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</div>
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<footer style="text-align:center">by <a rel="author" href="http://www.niallkennedy.com/">Niall Kennedy</a></footer>
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</body>
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</html>
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