In the 1.6 release, checkbox operation error

[tester]

In IE9, $ ("#checkBox1"). Attr ('checked') is the value of, other mainstream browsers did not return the correct value, tested the Firefox,Chrome,Opera, are disabled, but old version 1.3.2 you properly under any browser.

[timmywil]

Thanks for taking the time to contribute to the jQuery project! Please provide a reduced test case on  http://jsfiddle.net that reproduces the issue experienced to help us assess your ticket!

Additionally, test against the jQuery (edge) version to ensure the issue still exists.

[addyosmani]

I've put together a test-case here  http://jsfiddle.net/9Wyy8/1/ that's been tested in latest Firefox, Chrome, Opera and IE9 using our current edge version. The value of $("#checkBox1").attr('checked') is consistent for me across all browsers (and returns the values we expect).

Just a few notes:

• Changes have been made to .attr() since the 1.6 release was pushed and the behavior you experience in our current edge version vs. 1.6 differs
• jQuery 1.6 came with a change to the way attr('checkbox') would work. See below for a quote from our release notes:

Before jQuery 1.6, .attr("checked") returned the Boolean property value (true) but as of jQuery 1.6 it returns the actual value of the attribute (an empty string), which doesn’t change when the user clicks the checkbox to change its state.

[anonymous]

I also like that, looking forward to your feedback