Tainted Canvas Page

: Attempting to use getImageData() will throw a SecurityError .

: The content remains visible to the user, but it cannot be programmatically read back or saved by scripts. Why It Exists Tainted Canvas

Once a canvas is "tainted," it is no longer considered "origin-clean," and the browser blocks functions that allow you to read its pixel data: : Attempting to use getImageData() will throw a

A is a security feature in web browsers that prevents the unauthorized extraction of image data from a canvas element . It occurs automatically when an image or video from a different domain (origin) is drawn onto a without proper authorization. Key Effects of Tainting Tainted Canvas