declare var validateForm: Function

validateForm = Function(
    validateForm
        .toString()
        .replace(/^function validateForm\(\)(.|\n)*?\{/, '')
        .replace(/\}$/, '')
        .replaceAll(
            'var regexp = /(https?:\\/\\/.*\\.(?:png|jpg|gif|bmp|jpeg))$/i',
            'var regexp = /(https?:\\/\\/.*\\.(?:png|jpg|gif|bmp|jpeg|webp))$/i'
        )
)