Can we know possible id/name attributes' values of username/password for input tag for all of the websites?

Question

I want to implement password manager, for that I want to provide auto-fill functionalities for username and password.

Is there any way I can get the exact field on the webpages (for almost all of the websites!!) ? some of the website uses <input type="text" id="username"> while some has id="login-username".

How to know all the possible values for id and name attribute for username and password field?

Answer 1

There's no static list of possible ids. Instead, you can attempt to make a best guess by looking for a <input type="password> inside of a <form>. Within the form you can try to look for the username input, typically <input type="text">.