Duplicate og:image Tag in Pages

The og:image tag is an exception to that description, since Facebook allows for multiple image tags on the page. When only one tag is allowed to be declared, JFBConnect does give the default setting the lower priority. I do agree that our description is a little confusing.

-Melissa

JFBConnect follows the Open Graph specification. Specifically:

If a tag can have multiple values, just put multiple versions of the same <meta> tag on your page. The first tag (from top to bottom) is given preference during conflicts.

ogp.me/#array

If you are seeing different behavior, it likely means that Facebook doesn't like the first image that is set due to it's size or something else. Please run your page through the Facebook Debugger , it will show the images in the proper order and/or may give you more information on why the image isn't correct.

I hope that helps explain,
Alex

I'm glad we could help explain. The solution of lowering your default image isn't really a good one. I think Facebook only wants a minimum 200x200 image, though much higher is preferred. If you are going to make your default small, then you're basically leaving it to Facebook to guess which one to use. While the OG spec may state the normal priority, Facebook uses algorithms for everything, which means they don't always follow spec.

The best option is to try to use higher (though it doesn't have to be crazy high) resolution images where possible. That's good for tablets, retina display macs and various other viewing habits as well.

Thanks,
Alex

But not sure Facebook algorithm is that simple

I wouldn't be surprised if it is that simple. They just want the best picture. Since they can't see what the picture is or relate it to the actual content of the page, the resolution is the best thing they can quickly get. It would be a bit annoying if 2 very high resolution pictures were added, but Facebook still didn't respect the order and just took the largest, but when you get to lower (less then 800x600, lets say), I can see that resolution is all that matters.

Anyways, I'm glad to hear we could help explain things and that you got everything going. Should you need anything else, just let us know.

Finally, if you haven't already, please consider leaving a rating and review for JFBConnect, or our support, on the Joomla Extension Directory. It's certainly not required, but very appreciated:
extensions.joomla.org/extensions/extensi...l-display/jfbconnect

Thanks,
Alex