We run a blog in the UK and have recently noticed that Facebook stopped pulling our post descriptions and images when an article is liked, shared etc.
Running the Facebook Object Debugger I get the following messages:
Response Code: 200
Errors That Must Be Fixed
Can't Download: Could not retrieve data from URL.
(In case you wish to see it for yourself, here is a link: https://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Fwww.heruni.com%2F)
Below is a copy of our code -- what are we doing wrong?
<?php
function is_facebook(){
if(!(stristr($_SERVER["HTTP_USER_AGENT"],'facebook') === FALSE)) {
return true;
}
}
?>
<!DOCTYPE html>
<html dir="ltr" lang="en-US"<?php if(is_facebook()){echo ' xmlns:fb="http://www.facebook.com/2008/fbml" xmlns:og="http://opengraphprotocol.org/schema/"';}?>>
<head>
<title><?php wp_title(''); ?></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="msvalidate.01" content="374D59D3C3F26F6EFC410429D512A98C" />
<?php if(is_facebook()){ ?>
<meta property="og:title" content="<?php single_post_title(''); ?>"/>
<meta property="og:type" content="article"/>
<meta property="og:image" content="<?php echo wp_get_attachment_thumb_url( get_post_thumbnail_id( $post->ID ) ) ?>"/>
<meta property="og:url" content="http://<?php echo $_SERVER["HTTP_HOST"].$_SERVER["REQUEST_URI"];?>"/>
<meta property="og:site_name" content="<?php bloginfo('name'); ?>"/>
<meta property="fb:app_id" content="256997234347344"/>
<?php }?>
Check if you use gzip in your page, disable it and try again. That fixed it for me.
This is the markup which Facebook sees for your page:
https://developers.facebook.com/tools/debug/og/echo?q=http%3A%2F%2Fwww.heruni.com%2F
You don't need to do any is_facebook() conditional stuff here - the tags, and the namespace should just be made visible on the web to all HTTP clients, not just the Facebook scraper.
Remove all these conditionals, and you code should work.
Related
I'm dynamically changing my <meta property="og:image" content="#"> and <meta property="og:title" content="#"> tags using jQuery (below). When I view the code via 'inspect' in Chrome, the tags have successfully been changed.
HTML:
<meta property="og:title" content="#">
<meta property="og:image" content="#">
jQuery:
$("meta[property='og:title']").attr("content", data.name);
$("meta[property='og:image']").attr("content", data.thumbnail.url);
But the Facebook debugger tool is still showing content="#" for each. I'm assuming this is because Facebook reads the source code, before Javascript has a chance to replace the content.
Is there a way around this?
Thank you.
Facebook does not parse JavaScript at all, you can´t use dynamic Open Graph tags. It does not really make sense to change them on the fly anyway.
You can only change the OG tags dynamically on the server - obviously. For example: https://yourdomain.com/dynamicogtags.php?title=xxx&description=xxx
<meta property="og:title" content="<?php echo $_GET['title'];?>">
Not sure if that´s what you want to do though, the URL looks pretty ugly that way. Rewrite would be nice, of course.
You also may want to try something like prerender.io, but i am not sure if it will handle dynamic og tags.
As said previously, Facebook doesn't parse JavaScript at all.
One way of doing it (the way I do it) is to use a prerendering service like prerender.io to prerender your pages and redirect requests coming from web crawlers to that prerendering server based on the user-agent (you can easily find how to do that with your Nginx/Apache server on google).
Prerendering services produce an HTML/CSS render of your page, but they wait until the page is fully loaded and the JavaScript is executed before doing so. That way, Facebook gets a render of your website where the JavaScript has been executed and the OpenGraph tags are set correctly!
Prerender is open-source so you can run your own prerender server for free!
Try this it worked for me.
<?php
$params = array();
if(count($_GET) > 0) {
$params = $_GET;
} else {
$params = $_POST;
}
// defaults
if($params['type'] == "") $params['type'] = "restaurant";
if($params['locale'] == "") $params['locale'] = "en_US";
if($params['title'] == "") $params['title'] = "default title";
if($params['image'] == "") $params['image'] = "thumb";
if($params['description'] == "") $params['description'] = "default description";
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# MY_APP_NAME_SPACE: http://ogp.me/ns/fb/MY_APP_NAME_SPACE#">
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<!-- Open Graph meta tags -->
<meta property="fb:app_id" content="MY_APP_ID" />
<meta property="og:site_name" content="meta site name"/>
<meta property="og:url" content="http://URL/index.php?type=<?php echo $params['type']; ?>&locale=<?php echo $params['locale']; ?>&title=<?php echo $params['title']; ?>&image=<?php echo $params['image']; ?>&description=<?php echo $params['description']; ?>"/>
<meta property="og:type" content="MY_APP_NAME_SPACE:<?php echo $params['type']; ?>"/>
<meta property="og:locale" content="<?php echo $params['locale']; ?>"/>
<meta property="og:title" content="<?php echo $params['title']; ?>"/>
<meta property="og:image" content="http://URL/img/<?php echo $params['image']; ?>.png"/>
<meta property="og:description" content="<?php echo $params['description']; ?>"/>
</head>
</html>
I'm trying to use Facebook Open Graph meta tags for my site. I want my links to be showed correctly when I share them in Facebook. But it doesn't. When I test the link in Facebook Debuger but it always shows Error parsing input URL, no data was cached, or no data was scraped.. I searched a lot and read the Facebook's documentation about good examples and followed them. But no success. Here is my Page Code:
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head prefix="og: http://ogp.me/ns# fb: http://ogp.me/ns/fb#">
<meta charset="utf-8" />
<title>تست</title>
<link rel="canonical" href="www.kaladaran.com">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="keywords" content="Product">
<meta name="description" content="Product">
<!--FACEBOOK-->
<meta property="og:type" content="website">
<meta property="og:title" content="Test">
<meta property="og:site_name" content="Kaladaran">
<meta property="og:url" content="www.kaladaran.com/test.html">
<meta property="og:description" content="Descritption">
<meta property="fb:app_id" content="My App Id">
<meta property="og:image" content="http://kaladaran.com/Data/1598/6ccec951-f124-43f6-abb0-a59e3d94bd67.jpg">
<meta property="og:image:width" content="250px">
<meta property="og:image:height" content="169px">
<meta property="og:locale" content="fa_IR"><meta property="article:author" content="https://www.facebook.com/KDAdsCo" />
<meta property="article:publisher" content="https://www.facebook.com/KDAdsCo" />
</head>
<body>
<div>
<h1>
Facebook Open Graph Tag Test
</h1>
<img src="http://kaladaran.com/Data/1598/6ccec951-f124-43f6-abb0- a59e3d94bd67.jpg" alt="Panasonic" />
</div>
</body>
</html>
I can't understand what is wrong with my code? Any help is appreciated in advance.
The line:
<link rel="canonical" href="www.kaladaran.com”> is causing the error. A canonical link is meant to point to the current page, not the home page.
Also, note that, the URL inside a <link> is relative if you leave out the http:// which is why you are getting the error.
Make it like :
<link rel="canonical" href="http://www.kaladaran.com/test.html">
<meta property="og:url" content="http://www.kaladaran.com/test.html">
Also, remember to type the exact same URL in the Facebook scraper.
When Facebook finds a canonical link that points to a different URL, it will treat it like a redirect .
From Facebook:
The following will be treated as a redirect by the crawler:
A HTTP redirect
A <link rel="canonical" href=".." /> tag
A <meta property="og:url" content=".." /> tag
https://en.wikipedia.org/wiki/Canonical_link_element
How can I customize the content display when I share a page on facebook or google plus. title, description, image..etc.. When I share my page now on facebook, it adds a certain image and title other the required. In case of google plus, image is shared correctly but still the title is not the one I need.
Here's how I currently use them:
<!-- Google+ -->
Any idea how can I customize it to my need or if there is any packages that could support me as well. Also, do I need to create an app on facebook or google plus in order to do so. I'm just using share button.
something like this for facebook share
<meta property="og:title" content="title here" />
<meta property="og:image" content="image url here" />
<meta property="og:type" content="website" />
debug your page first on facebook using https://developers.facebook.com/tools/debug/
to clear facebook cache on your site
you don't have to create app on facebook to use share button, i think it's same with gplus but i'm not sure.
or create this page as a target url to share
<php
$title = 'title';
$image = 'image';
?>
<meta property="og:title" content="{{$title}}" />
<meta property="og:image" content="{{$image}}" />
<meta property="og:type" content="website" />
<script>
window.location = "http://www.url-to-real-shared-page";
</script>
Lets say this is the content of your master.blade.php template
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
#yield('og')
<title>Manny Isles</title>
Then this is your show.blade.ph template that extends the master.blade.php
#extends('layouts.master')
#section('content')
{{ $blog->content }}
#endsection
#section('og')
<meta property="og:title" content="{{ $blog->title }}" />
<meta property="og:image" content="{{ $blog->image_url }}" />
<meta property="og:type" content="website" />
#endsection
Just notice the #yield('og') and #section('og')
On a wordpress site, I'm using sharethis plugin...
http://support.sharethis.com/customer/portal/articles/446440-wordpress-integration
Where FB Share Link Button doesn't fetch and display Post description & image on facebook.
Any idea/hint what could be wrong?
Please add this function into your functions.php file.
function wpc_fb_opengraph() {
$wpc_image_url = wp_get_attachment_image_src( get_post_thumbnail_id(), 'large');
?>
<meta property="og:title" content="<?php the_title(); ?>" />
<meta property="og:url" content="<?php the_permalink(); ?>" />
<meta property="og:site_name" content="<?php bloginfo('name'); ?>" />
<meta property="og:description" content="<?php echo strip_tags(get_the_excerpt($post->ID)); ?>" />
<meta property="fb:app_id" content="APP ID HERE">
<meta property="fb:admins" content="YOUR FB USER ID (OR USERNAME) HERE"/>
<meta property="og:image" content="<?php echo $wpc_image_url[0] ?>"/>
<?php }
add_action('wp_head', 'wpc_fb_opengraph');
Note : if you haven't yet any facebook app for your web pages you dont have to use this lines .
<meta property="fb:app_id" content="APP ID HERE">
<meta property="fb:admins" content="YOUR FB USER ID (OR USERNAME) HERE"/>
Happy Wordpress..
You might want to try implemented the Open Graph Meta Tags if you haven't - the will give Facebook's servers hints as to what content you want to display if it can't be parsed automatically.
Info here: http://davidwalsh.name/facebook-meta-tags
I'm having a problem that I can't seem to figure out, though I'm not sure if I'm on the right track. Can anyone please advise?
I've just created a wordpress website, that post's will be shared on facebook.
I'm using featured images and I would like my featured image facebook thumbnail to be used.
It seems when I post a link to facebook, facebook just picks up images on the page and you can choose a thumbnail.
I'm not really up for that because the images are landscape and don't look good. So I started looking into meta tag with the open graph property to see if I could dynamically populate the content that facebook captures when posting a link to the wall.
This is what I tried...
<meta name="description" content="" />
<meta name="author" content="" />
<meta charset="utf-8" />
<meta property="fb:app_id" content="0000000000000000" />
<?php if ( is_single() || is_page() ) { ?>
<meta property="og:title" content="<?php echo get_the_title(); ?>" />
<meta property="og:type" content="article" />
<meta property="og:url" content="<?php echo get_permalink(); ?>" />
<meta property="og:image" content="<?php $fbthumb = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'facebook-thumb' ); echo $fbthumb[0]; ?>" />
<meta property="og:site_name" content="myblog.co.uk"/>
<meta property="og:description" content="<?php echo get_the_excerpt(); ?>" />
<?php } ?>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
But all of this is ignored!!!
Can anyone help me understand how to control the content facebook draws in via a link being posted to a wall. I would appreciated your help very much.
Thanks
I had this problem the other day. Facebook wants og:images to be larger than 200px in both directions, or it will ignore them. I found I got the best result when I used wp_get_attachment_image_src($img.ID, 'large')
Have you tried looking at your site with the Facebook Debugger to see what it has to say about your site? https://developers.facebook.com/tools/debug