Showing Thumbnail for link in WhatsApp || og:image

2019-01-07 04:27发布

站内文章 / Android

64 0

问题:

Tried to follow this question : Provide a picture for whatsapp link sharing

I have created a simple HTML webpage with the basic Facebook metatags:

<!--FACEBOOK-->
<meta property="og:title" content="San Roque 2014 Pollos" />
<meta property="og:description" content="Programa de fiestas />
<meta property="og:image" content="http://pollosweb.wesped.es/programa_pollos/play.png" />

The Facebook linter validate correctly and in Facebook it shows perfect, but when I try to share by WhatsApp the image doesn't show.

I'm trying it on WhatsApp on Android

→ This is the URL of the Sample Webpage

回答1:

I belive you need to add itemprop to the og:image meta tag, have the image size set to 256x256 and also it would not harm to add the site_name, type and updated_time properties either :)

<meta property="og:site_name" content="San Roque 2014 Pollos">
<meta property="og:title" content="San Roque 2014 Pollos" />
<meta property="og:description" content="Programa de fiestas" />
<meta property="og:image" itemprop="image" content="http://pollosweb.wesped.es/programa_pollos/play.png">
<meta property="og:type" content="website" />
<meta property="og:updated_time" content="1440432930" />

You can see these meta tags in action on for example Google Maps.
After you have changed your meta tags, you might need to wait a while for possible caches to update.

You can debug/verify Open Graph meta tags from the Facebook Debugger
If you can see all your tags there, then the sites/apps where your tags are not showing properly might have different requirements for Open Graph tags.

EDIT:
If you are going to specify an image by a HTTP-Secure link, you need to use og:image:secure_url instead of og:image.

EDIT2:
You also need to specify og:type as it is one of the four base required parameters.
<meta property="og:type" content="website" /> should get you in the right direction.

回答2:

I had the same issue and the problem was the size of the picture. Whatsapp doesn't support picture with a size greater than 300KB.

So the most important property to display image on Whatsapp is:

<meta property="og:image" content="url_image">

And the size of the image to display must be less than 300KB

回答3:

I found the solution here Whatsapp preview link posted on 2 March 16

And you should see working Before and after screenshoot

There is two kind of code. First meta og:image inside <head>

<meta property="og:image" content="url_image">

Thumbnail schema from schema.org inside <body>

<link itemprop="thumbnailUrl" href="url_image"> 
<span itemprop="thumbnail" itemscope itemtype="http://schema.org/ImageObject"> 
  <link itemprop="url" href="url_image"> 
</span>

Hope this help. Thanks.

回答4:

I also face that problem Finally, i solved it

<meta property="og:image" itemprop="image" content="http://yourdomain.com/yourfolder/imagename.png" />

My image property

Dimension : 300X200
Size : < 300KB
URL: http://yourdomain.com/yourfolder/imagename.png

Make sure in image name there is no space, if you have two words then use underscore sign

回答5:

Clear your whatsapp data and cache (or use another whatsapp) !

Android Phone : Go to SETTINGS > APPS > Application List > WhatsApp > Storage and Clear Data.

Be careful ! Backup your messages before this action.

Then the result : before and after clearing data and cache WhatsApp

回答6:

In reply to https://stackoverflow.com/a/35785393/1518500

Try the updated version for schema.org

<span itemprop="image" itemscope itemtype="http://schema.org/ImageObject"> 
 <link itemprop="url" href="imgurlHere">
 <meta itemprop="width" content="1200">
 <meta itemprop="height" content="800">
</span>

or using the json-ld format from google

<script type="application/ld+json">
 {
"@context": "http://schema.org/",
"@type": "ImageObject",
 "url": "ImgURLhere",
    "height": 800,
    "width": 1200

 }
 </script>

回答7:

For all still having this problem and as for me none of the posted solutions worked out.

I've had the similar issue. The image was showing correctly in all other share dialogs. Only WhatsApp couldnt display the image, even though the facebook debugger has the og:image tag correctly.

The solution that worked for me: I am using firebase. For uploaded content in their storage, you get a unique Download URL with a media token. Something like:

https://firebasestorage.googleapis.com/v0/b/XXXX.XXXXXXX.com/?alt=media&token=YYYYYYYY-YYYYYYYYYY-YYYYYYYYYYYYY

I used this URL in the og:image meta tag. It worked for Facebook etc., but it seems like WhatsApp couldnt download the image from this URL. Instead you need to include the image in your project directory and use this link for the og:image tag. Now it works properly in WhatsApp too.

Before (not working in WhatsApp, but facebook etc.)

<meta property="og:image" itemprop="image" content="https://firebasestorage.googleapis.com/v0/b/XXXX.XXXXXXX.com/your_image?alt=media&token=YYYYYYYY-YYYYYYYYYY-YYYYYYYYYYYYY">

After (now working in all shared dialogs tested, including WhatsApp)

<meta property="og:image" itemprop="image" content="https://domain_name/path_to_image">

Hope it might help some of you :)

回答8:

I documented the perfect detailed solution here - https://amprandom.blogspot.com/2016/12/blogger-whatsapp-rich-link-preview.html There are seven steps to be done to get the perfect preview.

Title : Add Keyword rich title to your webpage with maximum of 65 characters.
Meta Description : Describe your web page in a maximum of 155 characters.
og:title : Maximum 35 characters.
og:url : Full link to your webpage address.
og:description : Maximum 65 characters.
og:image : Image(JPG or PNG) of size less than 300KB and minimum dimension of 300 x 200 pixel is advised.
favicon : A small icon of dimensions 32 x 32 pixels.

In the above page, you have the required specifications, the character limit and sample tags. Do upvote once you find it satisfactory.

回答9:

You only need to type the message with "http://" at the start. For example: http://www.google.com shows the thumbnail image, but www.google.com no.

回答10:

I hope this help:

<meta property="og:title" content="Title goes here">
<meta property="og:site_name" content="Site name">
<meta property="og:image" content="imageURLShouldBeFromSameDomainName">
<meta property="og:image:width" content="640">
<meta property="og:image:height" content="300">

Take note of the imgURL that should be hosted from same domain, or it will not show up on whatsapp. I tried loading a url from amazon, image preview is not working.

回答11:

I don't know about the minimum number of meta tags required to work on whatsapp, found this in somewhere and this worked for me flawlessly. Note: Image resolution is 256 x 256.

   <head>
    <meta property="og:site_name" content="sitename" />
    <meta property="og:title" content="title">
    <meta property="og:description" content="description">
    <meta property="og:image" itemprop="image" content="http://www.yoursite.com/yourimage.jpg">
    <link itemprop="thumbnailUrl" href="http://www.yoursite.com/yourimage.jpg"> 
    <meta property="og:image:type" content="image/jpeg">
    <meta property="og:updated_time" content="updatedtime">
    <meta property="og:locale" content="en_GB" />
    </head>

    <body>
    <span itemprop="image" itemscope itemtype="image/jpeg"> 
      <link itemprop="url" href="http://www.yoursite.com/yourimage.jpg"> 
    </span>

    </body>