FB OpenGraph og:image not pulling images (possibly

2019-01-04 16:31发布

First -- I do not believe this is a duplicate issue. I've searched for same or similar problems on SO extensively, and due to the nature of troubleshooting before asking, I believe this problem is unique.

Facebook cannot grasp my og:image files and I have tried every usual solution. I'm beginning to think it might have something to do with https://...

  • I have checked http://developers.facebook.com/tools/debug and have zero warnings or errors.
  • It is finding the images we linked to in the "og:image", but they're showing up blank. When we click the image(s), however, they DO exist and it takes is straight to them.
  • It DOES show one image -- an image hosted on a non-https server.
  • We've tried square images, jpegs, pngs, larger sizes and smaller sizes. We've put the images right in public_html. Zero are showing up.
  • It's not a caching error, because when we add another og:image to the meta, FB's linter does find and read that. It DOES show a preview. The preview is blank. The only exception we're getting is for images that are not on this website.
  • We thought maybe there was some anti-leach on cpanel or the .htaccess that was preventing the images from showing up, so we checked. There was not. We even did a quick < img src="[remote file]" > on an entirely different server and the image shows up fine.
  • We thought maybe it was the og:type or another oddity with another meta tag. We removed all of them, one at a time and checked it. No change. Just warnings.
  • The same code on a different website shows up without any issue.
  • We thought maybe it was not pulling images because we're using the same product page(s) for multiple products (changing it based on the get value, ie, "details.php?id=xxx") but it's still pulling in one image (from a different url).
  • Leaving any og:image or image_src off, FB does not find any images.

I am at the end of my rope. If I said how much time myself and others have spent on this, you'd be shocked. The issue is that this is an online store. We absolutely, positively cannot NOT have images. We have to. We have ten or so other sites... This is the only one with og:image problems. It's also the only one on https, so we thought maybe that was the problem. But we can't find any precedent anywhere on the web for that.

These are the meta-tags:

<meta property="og:title" content="[The product name]" /> 
<meta property="og:description" content="[the product description]" /> 
<meta property="og:image" content="https://www.[ourwebsite].com/images/shirts/overdriven-blues-music-tshirt-details-black.png" />
<meta property="og:image" content="https://www.[ourwebsite].com/images/shirts/overdriven-blues-music-tshirt-art-black.png" />
<meta property="og:image" content="http://www.[ADIFFERENTwebsite].com/wp-content/uploads/2011/06/ARS-Header-Shine2.png" />
<meta property="og:image" content="https://www.[ourwebsite].com/images/ARShopHeader.png" />
<meta property="og:image" content="http://www.[ourwebsite].com/overdriven-blues-music-tshirt-art-black.JPG" />
<meta property="og:type" content="product"/>
<meta property="og:url" content="https://www.[ourwebsite].com/apparel-details.php?i=10047" />
<meta property="og:site_name" content="[our site name]" />      
<meta property="fb:admins" content="[FB-USER-ID-NUMBER]"/>
<meta name="title" content="[The product name]" />
<meta name="description" content="[The product description]" />
<link rel="image_src" href="https://www.[ourwebsite].com/images/shirts/overdriven-blues-music-tshirt-details-black.png" />
<meta name="keywords" content="[four typical keywords]">
<meta name="robots" content="noarchive">

In case you want it, here's a link to one of our product pages that we've been working on. [Link shortened to try to curb this getting into search results for our site]: http://rockn.ro/114

EDIT ----

Using the "see what facebook sees" scraper tool, we were able to see the following:

"image": [          
      {
         "url": "https://www.[httpSwebsite].com/images/shirts/soul-man-soul-music-tshirt-details-safari.png"
      },
      {
         "url": "https://www.[httpSwebsite].com/images/shirts/soul-man-soul-music-tshirt-art-safari.png"
      },
      {
         "url": "http://www.[theotherNONSECUREwebsite].com/wp-content/uploads/2011/06/ARS-Header-Shine2.png"
      }
   ],

We tested all links it found for a single page. All were perfectly valid images.

EDIT 2 ----

We tried a test and added a subdomain to the NONSECURE website (from which images are actually visible through facebook). Subdomain was http://img.[nonsecuresite].com. We then put all images into the main subdomain folder and referenced those. It would not pull those images into FB. However, it would still pull any images that were referenced on the nonsecure main domain.

POSTED WORKAROUND ----

Thanks to Keegan, we now know that this is a bug in Facebook. To workaround, we placed a subdomain in a different NON-HTTPS website and dumped all images in it. We referenced the coordinating http://img.otherdomain.com/[like-image.jpg] image in og:image on each product page. We then had to go through FB Linter and run EVERY link to refresh the OG data. This worked, but the solution is a band-aid workaround, and if the https issue is fixed and we go back to using the natural https domain, FB will have cached the images from a different website, complicating matters. Hopefully this information helps to save someone else from losing 32 coding hours of their life.

18条回答
地球回转人心会变
2楼-- · 2019-01-04 16:51

Similar symptoms (Facebook et al not correctly fetching og:image and other assets over https) can occur when the site's https certificate is not fully compliant.

Your site's https cert may seem valid (green key in the browser and all), but it will not scrape correctly if it's missing an intermediate or chain certificate. This can lead to many wasted hours checking and rechecking all the various caches and meta tags.

Might not have been your problem, but could be other's with similar symptoms (like mine). There's many ways to check your cert - the one I happened to use: https://www.sslshopper.com/ssl-checker.html

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太酷不给撩
3楼-- · 2019-01-04 16:52

I don't know, if it's only with me but for me og:image does not work and it picks my site logo, even though facebook debugger shows the correct image.

But changing og:image to og:image:url worked for me. Hope this helps anybody else facing similar issue.

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Rolldiameter
4楼-- · 2019-01-04 16:54

From what I observed, I see that when your website is public and even though the image url is https, it just works fine.

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趁早两清
5楼-- · 2019-01-04 16:54

For me this worked:

<meta property="og:url" content="http://yoursiteurl" />
    <meta property="og:image" content="link_to_first_image_if_you_want" />
    <meta property="og:image" content="link_to_second_image_if_you_want" />
    <meta property="og:image:type" content="image/jpeg" /> 
    <meta property="og:image:width" content="400" /> 
    <meta property="og:image:height" content="300" />
    <meta property="og:title" content="your title" />
    <meta property="og:description"  content="your text about homepage"/> 
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smile是对你的礼貌
6楼-- · 2019-01-04 16:55

tl;dr – be patient

I ended up here because I was seeing blank images served from a https site. The problem was quite a different one though:

When content is shared for the first time, the Facebook crawler will scrape and cache the metadata from the URL shared. The crawler has to see an image at least once before it can be rendered. This means that the first person who shares a piece of content won't see a rendered image

[https://developers.facebook.com/docs/sharing/best-practices/#precaching]

While testing, it took facebook around 10 minutes to finally show the rendered image. So while I was scratching my head and throwing random og tags at facebook (and suspecting the https problem mentioned here), all I had to do was wait.

As this might really stop people from sharing your links for the first time, FB suggests two ways to circumvent this behavior: a) running the OG Debugger on all your links: the image will be cached and ready for sharing after ~10 minutes or b) specifying og:image:width and og:image:height. (Read more in the above link)

Still wondering though what takes them so long ...

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霸刀☆藐视天下
7楼-- · 2019-01-04 16:55

I had the same error and nothing of previous have helped, so I tried to follow original documentation of Open Graph Protocol and I added prefix attribute to my html tag and everything became awesome.

<html prefix="og: http://ogp.me/ns#">
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