[AC-3116] getElementsByTagName("text").item(0).text now has spotty functionality

Obtaining XML elements using the following code has

var doc = xhr.responseXML.documentElement;
    
    var items = doc.getElementsByTagName("entry");

    for (var c=0;c<items.length;c++)
    {
        var item = items.item(c);
	var authorname = item.getElementsByTagName("author").item(0).text;
	var authorid = item.getElementsByTagName("authorid").item(0).text;
	var info = item.getElementsByTagName("text").item(0).text;
    }

The most recent build of 1.8 and 1.9 starting around December 8 these types of calls now have sporadic functionality. There is no direct pattern I can pick up yet as to why or which ones do not work, it seems almost random. The precise error code generated is: "Result of expression 'item.getElementsByTagName' [undefined] is not a function." I have checked and made sure the source XML document contains all those XML elements listed, and in fact, with earlier builds of 1.8 or 1.7 this code works perfectly fine on the same exact document. This issue only affects iOS. The same code runs just fine on Android with the latest CI builds.