Does Chrome use XPath 2.0?

Question

I was under impression that all latest browsers are with XPath 2 now. When I use lower-case() and uppser-case() (functions introduced in version 2)

Answer 1

Google Chrome (or Chromium) still uses libxml2 thus is limited to XPath 1.0. Cf. this Readme from the source.

Answer 2

No, Chrome uses XPath 1.0.

You can simplify your XPath expression to just a v2.0 function to see this:

$x("lower-case('ABC')")
SyntaxError: Failed to execute 'evaluate' on 'Document': The string 'lower-case('ABC')' is not a valid XPath expression.

Trying any other XPath 2.0 function such as current-date() will yield a similar error.

There is no built-in way of definitively determining the version of an XPath implementation other than by such probes.

XSLT, on the other hand, has system-property('xsl:version') for determining version 1.0 versus 2.0.