window.blur() does not work(please test it)

Question

For a sandwich, there is a piece of bread at the bottom .

I've tested window.blur() in

https://www.w3schools.com/jsref/tryit.asp?filename=tryjsref_win_blur

Please test the code in the above link.

But it seems it does not work. The new window does not go to the bottom . It appears on the top since it was created. I can always see the popup since clicking the button.

I have tested it in two PC(windows 7 and 10) with newest chrome, firefox, IE. But none of them worked.

Maybe I am not understanding what window.blur() mean?

PS window.focus() works well in any case.

Answer 1

Browsers generally ignore window.blur() . This is recommended by the spec .

User agents [browsers] are encouraged to ignore calls to this blur() method entirely.