There are more than 20 different valid field name tokens in the spec, not just “on” and “off”[1]. If web developers actually used the other values correctly the

There are more than 20 different valid field name tokens in the spec, not just “on” and “off”[1]. If web developers actually used the other values correctly then user agents wouldn’t need to use heuristics to figure out the correct data to autofill. [1] https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#inappropriate-for-the-control https://html.spec.whatwg.org/multipage/form-control-infrastr...