All modern browsers support the W3C DOM specification.
However, there are some differences between browsers. One important difference is:
XML often contains new line, or white space characters, between nodes. This is often the case when the document is edited by a simple editor like Notepad.
The following example (edited by Notepad) contains CR/LF (new line) between each line and two spaces in front of each child node:
Internet Explorer 9 and earlier do NOT treat empty white-spaces, or new lines as text nodes, while other browsers do.
The following example will output the number of child nodes the root element (of books.xml) has. IE9 and earlier will output 4 child nodes, while IE10 and later versions, and other browsers will output 9 child nodes: