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When users have external avatar urls (for instance: in a SSO environment where the avatar is provided by another domain), color thief fails to get the avatar dominant color because the canvas would be tainted. Following the instructions here (https://lokeshdhakar.com/projects/color-thief/ on the "Does it work if the image is hosted on another domain?"), adding an `image.crossOrigin = 'Anonymous';` solves the issue. Tested on my forum which before suffered from a JS error and works fine (without this fix, the canvas remain in the `body` while an script error is thrown by color thief)