Images Don't Load on Canvas Using Safari

Images do not load on the Canvas website while using Safari. It just shows a question mark. This issue happens with nearly every person that uses the website on a Mac. The issue does not persist on the Canvas app on mobile devices, but it does in Safari on Macs. I was able to change a setting a months ago that fixed the issue, but when I upgraded the issue came back and I can't remember what setting I changed.