Images don't load in Facebook or in Wikipedia
No images show in at least these two sites, Facebook and Wikipedia. I have only absent place holders or black.
MacBook Pro, OS X El Capitan (10.11.4)
A
I suggest you start by taking the steps recommended in this support article.
B
If the Develop menu isn't showing in the Safari menu bar, please select
Safari ▹ Preferences... ▹ Advanced ▹ Show Develop menu in menu bar
Then uncheck
Develop ▹ Disable Images
You can then disable the menu if you wish.