Image Display Issue in a Memory Card Game in Firefox

The Experience

My friend @adeljose sent me a message saying there’s a problem with my memory card game , the pictures on the cards weren’t showing up. That surprised me, because everything worked fine the last time I checked.

So I opened the game to see for myself, and yeah, everything looked perfect. I asked him, “What browser are you using?”
He said, “Firefox.”

I tried it in Firefox , and now I saw the issue. The images were missing. That’s when I realized the problem wasn’t with the game itself, but with how different browsers handle certain things.

The Problem

The game uses images of country flags, and originally, I used data URIs to load them. I chose this method as part of my approach because:

It helps prevent users from cheating via the inspect element.

It improves loading speed.

But Firefox is stricter than Chrome when it comes to validating data URIs. Chrome showed the images just fine, but Firefox didn’t render them at all. That’s why they weren’t showing up.

The Solution: A Better Approach

To fix the issue and make the game work in all browsers, I changed the way images are handled:

1. Preload All Images Before the Game Starts

   • This way, all the flags are loaded and ready before the game begins.

2. Store Images in Memory

   • Once loaded, images are cached and reused, making the game run smoother.

3. Stop Using Data URIs

   • I switched to using standard approche

Conclusion

Now the game works perfectly on both Chrome and Firefox. This whole experience reminded me how important cross-browser testing is, and how being flexible can lead to better solutions for everyone.

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• Steem Memory Game Launch Announcement
• Let's Make Steem Fun Again: Join the Steem Memory Game

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