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An Error object is passed to the error property of the object that is passed to the afterUploadImage event when upload fails.

Example of removing failed

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image when upload fails

Code Block
languagejs
editor.setEventListener('afterUploadImage', function (e) {
    if (e.error && e.error.status === 500) {
        e.editor.execCommand('showDialog', 'alert', 'Image upload failed.');
        var image = e.editor.getAPIModelById(e.elementId);
        image.remove();
    }
});

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