Check if the URL has been accessed before and signaling to the user. With this script you will be able to know if you have already accessed the specific page of some image/video/tag before. If you have never accessed a URL, it will persist it in IndexedDB, if you have already accessed it, a warning message will be added to your screen.
Dette er versjoner av dette scriptet hvor koden ble oppdatert. Vis alle versjoner.
