Images on certain pages weren’t displaying in Safari browser on iPhone and iPad.

After investigating, it appears to be due to iOS resource limitations.

For details, please check the links below.

First, what determines resource limitations? It depends on the RAM installed in the device.

• iOSにおけるリソース制限 - console.lealog();

• iPad の Safari には画像サイズ制限がある - hakobera's blog

That’s all from the Gemba.