Password bug

The password created by safari/webkit engine that would not be accepted at this website.

The template/formula that Safari/Webkit/Safari Tech. Preview uses to create a safe and secure password does not meet the standards for many websites. I have attached 1 example for the developer forum to create an account on the ARM architecture website.

The criteria requested is :
8-16 characters, containing 3 out of 4 of the following: Lowercase characters, uppercase characters, digits (0-9), and one or more of the following symbols: @ # $ % ^ & * - _ + = [ ] { } | \ : ' , ? / ` ~ " ( ) ; .

the created autofill password (see attachment 2) was rejected.

My suggestion is the Apple-manager resource implements a feature (via long-press, tap and hold, or 3d touch) whereby the user can determine how many chars, inters, and special chars, or strings are included in the password. It should have a default, but can be edited via this menu.