SCRIPT438: Object doesn't support property or method 'getAttribute'

[artfulhacker]

In IE8 (emulated), IE9 emulated works fine. Using (v3.0.1 unminified, 19kB) line 323.

[jamesallardice]

Can you please try to reduce the markup within your form to the bare minimum that reproduces this error and then add it to this issue? That would help me in trying to debug it.

[artfulhacker]

So apparently our former developer decided to invent a new html attribute form="" and then specified the form id as the value. When removed this fixed the issue. I would be interested in created a PR but based on the research I did in IE8 you would need to wrap it in a try catch and I am not sure you want that in your code, any other suggestions or do you think it is safe to assume developers are not complete morons when it comes to inventing their own attributes?

[jamesallardice]

Thanks for reporting this.

is safe to assume developers are not complete morons when it comes to inventing their own attributes?

No, it's not really safe considering it's very common in e.g. AngularJS (attribute directives). If we can resolve this without wrapping everything in a try..catch that would be preferable. I'll have a look into it as soon as I can.

[jamesallardice]

The form attribute you mentioned was actually not invented by your developer. It's an HTML5 attribute that's used to specify association with a form.

If it is used its value should always be the ID of a form element in the same document, so I've fixed this by checking whether element.form is a string, and if it is we get a reference to the actual form element with getElementById.

Thanks again for reporting this.

[artfulhacker]

interesting... well glad i could help