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#1 2017-09-08 04:37:17

gnurob
Member
2016-10-29
13

Answer to Facebook Link Preview Not Working

Hello,

You've probably noticed that posting links on Facebook often fails to load a preview image, and worse, you probably gave up and posted images directly to Facebook; loosing the link back to your finely curated gallery.

There is a solution (and should really be added to Bootstrap, etc.)!

Steps:
1. Go to https://developers.facebook.com/tools/debug/ and load the same URL.
2. Go to Facebook and re-post the link.
3. Enjoy a beer.

There are plugins for Drupal, WordPress, etc., that actually automate this process. It seems important enough to me that it should be a stand alone extension on the image properties page, and the same functionality built-in to the components of the web site that use it, like @philb 's excellent Bootstrap.

Piwigo version: 2.9
PHP version: 5.6.25

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#2 2017-09-12 10:49:42

eliz82
Member
Romania
2016-04-27
250

Re: Answer to Facebook Link Preview Not Working

Maybe they need to access debug tool to create a "preview image" only for URL's that do not specify an open graph meta ( http://ogp.me/ ) og:image in the head of the page? You should test that.

Last edited by eliz82 (2017-09-12 10:50:03)

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#3 2019-03-11 19:26:19

michaelh99
Member
Texas
2014-08-19
36

Re: Answer to Facebook Link Preview Not Working

Is anyone aware of a plugin that automates the process of getting the FB crawler to see a piwigo image from the first share?

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#4 Today 18:09:50

daviding
Member
Toronto, Canada
2018-11-04
1

Re: Answer to Facebook Link Preview Not Working

I have been using the "Share This" plugin since I switched from Flickr to Piwigo in November 2018.  My normal workflow is to post a photo on Piwigo, and then syndicate it to Tumblr and Facebook.  Recently, the preview image is not showing up in Facebook.

It's possibly a change in Facebook, or a change in Piwigo.  I suspect Piwigo, because I recently upgraded. 

> Environment
> Piwigo 2.9.5
> Operating system: Linux
> PHP: 7.2.17 (Show info) [2019-04-25 17:52:54]
> MySQL: 10.2.23-MariaDB [2019-04-25 11:52:54]
> Graphics Library: External ImageMagick 6.7.8-9

Following the suggestion ...

> 1. Go to https://developers.facebook.com/tools/debug/ and load the same URL.

... the image preview doesn't show up there, as it did last week.

I'm mostly on the Elegant theme, and tried Bootstrap_Darkroom to see if there was different result.  The Facebook debug hasn't shown anything different.

Can anyone suggest further diagnostics?

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