Reload this page to observe that background images sent with Cache-control: no-cache, no-store headers are not reloaded when the dynamic image responds after the rest of the page has rendered, but <img/> nodes will reload correctly. This example uses an artificial 2 second delay.

If the request to the dynamic image responds before the page begins rendering, both the background-image and <img/> node will correctly show the same image. This is achievable in a low latency environment with no artifical delay.

<img src="image.php"/> background-image: url(image.php)