Omitting alt altogether indicates that the image is a key part of the content and no textual equivalent is available. Setting this attribute to an empty string (alt="") indicates that this image is not a key part of the content (it’s decoration or a tracking pixel), and that non-visual browsers may omit it from rendering. Visual browsers will also hide the broken image icon if the alt is empty and the image failed to display.
Empty alt alt="" is currently marked as a REQUIRED item to fix. This in unacceptable.
Copy-paste from MDN: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Img
Empty alt
alt=""
is currently marked as aREQUIRED
item to fix. This in unacceptable.