Disable paste event on PasswordField

Flow
1

Hi,

How to disable paste event on PasswordField in Vaadin 14? The copy event is disabled by default, and I would like to disable the paste event.

Looking forward to your suggestions.
Thanks,
Stefan

2

Are you really sure you want to disable pasting values into password fields?

This idea has previously been considered a good practice for security but nowadays basically any security expert will say that it’s a bad idea because of how it makes it difficult to use a password manager. See e.g. https://www.troyhunt.com/the-cobra-effect-that-is-disabling/ for more details.

3

As Leif mentioned it could cause problems with the password managers and usability. There is no API for that one in the component, however the way to do it would be:
passwordField.getElement().setAttribute("onpaste", "return false;");

4

As a beginner in Vaadin framework, I needed this for testing purposes. Thanks for the reply and for the post, I have found it very useful.