$(window.location).attr('href', 'foo');

[[email protected]…]

I use this with jquery 1.4.2. and it was ok.

After upgrading 1.4.4 it says: a.setAttribute is not a function

[jitter]

Thanks for taking the time to contribute to the jQuery project by writing a bug report! But why do you even use .attr() on a non DOM element? It's easier and faster to do window.location.href = foo.

The next time please also submit a reduced test case along, which reproduces the issue you are experiencing (on ​http://jsfiddle.net). So that we can more easily investigate your issue further.

Btw. did you try searching the bug tracker for similar tickets, because you should have found ​#7500 and ​#7605 or one of the other many duplicates of #7500.
If/When that bugs gets fixed this should all be happily working again. In the mean time just use window.location.href = foo

[addyosmani]

#7582 is a duplicate of this ticket.