XML: xml:space preserve

Meaning of xml:space preserve

the xml:space="preserve" in XML is fairly complicated.

You cannot just delete it. But also, browsers may not support it.

A whitespace node in XML is a node that's all whitespace. 〔see DOM: Whitespace Nodes〕

here's a example:

<p>I <b>love</b> <b>cats</b>.</p>

There is only ONE whitespace node above. It happens between the b tags.

Reference