How to Dynamically Refresh an Image from the Same URL Without Browser Caching?

How to Dynamically Refresh Image at the Same URL

You have a problem where an image on your site is accessed through a link and refreshed with a new image every time the link is accessed. However, when you load the image in the background and attempt to update it on the page, it remains unchanged, even though it refreshes upon page reload.

The issue lies in browser caching. By default, browsers cache images to improve loading times. Hence, when you try to update the image, the browser simply displays the cached version instead of fetching the new image.

Solution: Using Cachebreakers

To force the browser to download the latest image, you can add a cachebreaker to the image URL. This is typically done by appending the current timestamp, ensuring the browser sees the request as a unique URL.

In your JavaScript code:

newImage.src = "http://localhost/image.jpg?" + new Date().getTime();

By adding this cachebreaker, you force the browser to retrieve the image directly from the server, effectively bypassing the cache. This ensures that the latest version of the image is always displayed on the page.

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