Posting 10 MB GIF file in facebook with Graph API not showing the image on wall

Question

I am posting a 10 MB GIF file to facebook with below API call.

FB.api('/me/feed', 'post', {
    link: url,
    description: "test",
    caption: "test",
    source: url,
    privacy: {
        value: "EVERYONE"
    }
}, function (response) {
    //some code
}); 

The image is getting posted, but in facebook, I cant see the preview image. But when I click on the image, it is getting opened and playing the GIF. Can anybody tell me why??

Answer 1

I ended up adding the GIF image as a video with the following code.

FB.api('/me/videos', 'post', {
    file_url: "<url of GIF>",
    description: "<description>",
    caption: "<caption>",
    source: "<url of GIF>",
    privacy: {
        value: "EVERYONE"
    }
}, function (response) { 
    // some code 
});

And it worked!!