jQuery.type is deprecated – jquery 3.5.1 / WP 5.7

for jquery 3.5.1 compatibility and WP 5.7:

/autoptimize/classes/static/toolbar.js – jQuery.type is deprecated

Solution: Review code that uses jQuery.type() and use a type check that is appropriate for the situation. For example. if the code expects a plain function, check for typeof arg === “function”.

See also: https://github.com/jquery/jquery-migrate/blob/master/warnings.md