Digg bookmark is not visible

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.0.X EE, 7.1.X, Master
• Component/s: Blogs, Collaboration, Social Bookmarks
• Labels: None
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/47366

Steps to reproduce:

1. Add the blogs portlet to the page
2. Click on configure
3. Set Display Style to Simple
4. For simplicity enable only the Digg social bookmark
5. Save and close the modal
6. Create a blog entry which will take you to the list of entries
7. Where is the Digg bookmark?

If we inspect the html, the bookmark is present but it has no image. Also, an error appear in the console
GET http://widgets.digg.com/buttons.js