ownerDocument.namespaces throws 'unspecified error' in IE8

[juafrlo]

I'm using html5shiv in a project, and I have random errors here:

function shivPrint(ownerDocument) {
var shivedSheet,
wrappers,
data = getExpandoData(ownerDocument),
namespaces = ownerDocument.namespaces, ------> Here I got an error
ownerWindow = ownerDocument.parentWindow;
....

This function is called from:
shivPrint(document);

The javascript console throws this info about the error:
'unspecified error' in line...

It seems the ownerDocument (the document) is not set or initialized correctly at this point, and it happens only sometimes.
To avoid this error, I wait to window.onload event to call this function.

// Wait for onload to avoid load document error in IE8
window.onload = function() {
// shiv for print
shivPrint(document);
}

[aFarkas]

@juafrlo

Thanks for your bugreport. I will look into this soon. The onload event might be to late. We could try to use a IE-only domcontentready method. Additionally window.onload = your function, can be overwritten or overwrites other event handler. It's not save.

[rtgibbons]

@juafrlo's fix worked for us - would be nice to get this fix formalized. (found this project and bug via modernizr)