tablesorter default 'simple' extractor

tablesorter default 'simple' extractor

current simple textExtraction looks as follows:

                    if(node.childNodes[0] && node.childNodes[0].hasChildNodes()) {
                        t = node.childNodes[0].innerHTML;
                    } else {
                        t = node.innerHTML;
                    }

From my experience on FF most of the time first child is something like:
<TextNode textContent="\n       ">

As such simple text extractor most of the time falls through else clause.
Wouldn't it make more sense to filter out whitespace text nodes?

    var nonWhitespaceChild = findNonWhitespaceChild(node);
    var nonWhitespaceChild2 = nonWhitespaceChild && findNonWhitespaceChild(nonWhitespaceChild);
    if (nonWhitespaceChild2) {
        t = nonWhitespaceChild2.innerHTML || nonWhitespaceChild2.wholeText;
    } else if (nonWhitespaceChild) {
        t = nonWhitespaceChild.innerHTML || nonWhitespaceChild.wholeText;
    }
    if (!t) {
        t = node.innerHTML;
    }

I understand it can be handled with custom parser, but thought I'll throw it out there.