Sent an email with description of the issue - have no reply so far. Issue persists

Still no answer from support.

Hi Alexei, sorry for the delay, we're taking a look into it. Thanks for being patient!

We took a look at it, and it should be fixed now. Would you mind giving it another shot? Try re-installing the bookmarklet and adding the images again. Also, what browser are you using?

It still doesn't work, but I have more information for your developers.
I tested Chrome with extension you advertise and it did not work again. Then I used bookmarklet for Firefox and it worked in both cases for FF and for Chrome (when I copied JavaScript to Chrome bookmark I created specifically).
I guess if it doesn't work for me than there should be other people with similar problem...

You can try Add button on this page: http://alexeirebrov.com/collections/wall-design/products/8014-e-form-design

Hi Alexei, thank you so much for the details! We were choosing the wrong image during our internal testing but finally discovered that the photo embedded in the houzz button and in the facebook tags did not have a protocol specified in the URL (http: or https:) leading to a malformed URL: "//cdn.shopify.com/s/files/1/0167/2226/products/8019-e-form.jpg"

We're working on making the bookmarklet smarter so that it will respect "protocol relative" URLs but in the mean time it looks like the image url is also causing issues for Facebook shares: https://developers.facebook.com/tools/debug/og/object?q=http%3A%2F%2Falexeirebrov.com%2Fcollections%2Fnew-products%2Fproducts%2F8019-e-form-design

You can resolve this immediately by prepending "http:" or "https:" to the image URLs in the HTML.

Hope this helps!

Thank you so much Jian! I was able to fix it (with http: added to an image path) but clearly this is Shopify issue. I raised it in Shopify forum and hopefully will get some help in a day or two.
Thanks again!