Cyber Security Lab
IT Security & IT Forensics Exercises

Web Forensics

Cache Manipulation

Load images using various techniques to avoid being cached.


Various images are loaded and displayed on the pages.

What other hidden images can be found?

How does the transfer from the server to the client look like?

Exercise C: Canvas Example

Solution of the exercise

For the first image, the file was loaded using JavaScript and then inserted into the canvas element.

For the second image, a Base64 encoded image was inserted using JavaScript.

The third image was previously stored in local storage and then loaded from there using JavaScript.