Edge (and other Chromium based browsers like Chrome) does make a controversial decision on autocomplete=off and chooses to support autocomplete. As the HTML spec indicates that “off” is a hint to the browser rather than a rule to be followed, this implementation still stays within the spirit of the document. Some web developers have been employing a workaround to this behavior by providing non-standard values to the autocomplete attribute. While it works to prevent the browser from showing autofill suggestions today, it is not advisable as the behavior could change in future. One of the primary reasons to suppress browser autofill is when the website has its own autosuggest implementation. To handle this case, use ariaHasPopup or ariaAutoComplete attributes which are recognized by Edge and avoids showing suggestions for that input box.
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