In order to allow a complete deletion of the stored data, it is necessary to close all the tabs before starting the manipulation.
On Google Chrome
Step 1 : In the upper right corner - select the 3 dots > Settings
Step 2: A new page opens - Type "cache" in the search bar - Validate
Step 3: In the generated results, select "Clear browsing data".
Step 4: In the pop-up window that opens select "Advanced" > "Time range" All time/ Cookies / Cached images and files - then "Clear data"
On Edge
Step 1 : In the upper right corner - Select the three dots -
Step 2 : A new page opens - Type "cache" in the searchbar - Then, "Choose what to clear".
Step 3 : Select "Time range - All Time" > "Cached images and files" and "Cookies [...]" then "Clear now"
On Firefox
Step 1: In the upper right corner > 3 lines > Settings
Step 2 : A new pages opens - Type "cache" in the searchbar
Step 3 : From there - Select "Clear Data..."
Step 4 : Select "Cookies and Site Data" et "Cached Web Content" then click "Clear"