How do BW browser extensions detect password changes?

Ask the Community Password Manager
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1

Can someone explain how the Chrome extension autosave detects password creation/changes?

If it is well documented enough, websites might be more inclined to support it.
I suppose are 2 ways

  1. Normal simple POST
  2. AJAX POST/PUT

What attributes/names/headers does the extension use to activate the autosave banner?

2

I don’t know the answer to this, but when I want to find this type of information, I’d usually go poking around the codebase to look for clues:

3

I did but couldn’t locate it.

4

I would check out the following: