Action confirmation parameter should be clearer

[levnikmyskin]

This is not really a bug, but to me it looks like the action confirmation parameter is not very clear:

• From the docs, it looks like we have to pass None if we want to disable confirmation;
• In the source code, confirmation defaults to None as well.

However, since the confirmation is rendered as a string when passed to Javascript, the confirmation dialog will appear nonetheless, like in this screenshot:

The solution is to use an empty string for the confirmation parameter, eg:

@action("some string", "some string", confirmation="")  

Imo, this is not very clear (and took me quite some time to figure it out). It could be possible to change the confirmation default to an empty string and also change the documentation. I can address this issue, just let me know if this looks reasonable to you.

[dpgaspar]

@levnikmyskin, yes looks very reasonable to me, thank you