Setting CSS to NaN throws IE error

[rodnaph]

If you try to set a css property to NaN it throws an 'Invalid argument' exception in IE. Should jQuery test for this for robustness?

Example:

$( 'body' ).css({ height: 'a'*1 });

Suggested patch attached.

[rodnaph]

Maybe this is a duplicate of #2954, probably a much better fix?

[flesler]

Why would you set NaN as a css value ? The other ticket isn't related to this.

NaN is just an invalid value, so I don't see any need to check this.

Please reopen if you have anything else to add.

[rodnaph]

I know that normally you'd never set NaN as a value, but the reason I thought it could have been a problem is because it creates different behaviour across browsers. Firefox happily ignores the value when it's set, but IE throws an error dialog. I understand if it's not something that you think needs attention though.

[flesler]

I think jQuery needs to provide normalize methods to do needed tasks. The fact that they behave differently doesn't mean that needs to be normalized.

Just make sure NaN's don't slip in by accident :)