Selenium cannot find SVG element in XPath

I have the following HTML:

<div id="imageholder>
    <svg>
        <g> <image href='blah.gif'> </g>
    </svg>
</div>

And I cannot seem to locate the svg with selenium IDE on firefox at all. I have tried:

//svg
//svg:svg
//*[name()='svg']
//*[namespace-uri()='http://www.w3.org/2000/svg']

None of them can locate my svg element. Sometimes I get the error:

error = TypeError: e.scrollIntoView is not a function

I'm using this as a means to use the locator in JUnit 4 testing if that helps.