Close window alert

Question

Hi, i'm trying to add a java script to load a message when someone wants to close the survey.

So i tried this code:
!
But it doesn't take the modified text and it shows me this:

!

Can anyone help?

TomG · Accepted Answer

I think this is your problem: https://www.chromestatus.com/feature/5349061406228480

khalid · Answer

> @TomG said:> I think this is your problem: https://www.chromestatus.com/feature/5349061406228480Thanks Tom

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