Xsl:import fails when using XSL object in $.transform

After the initial set of xsl:import related problems I’ve encountered running jQuery Transform plugin in IE7, I’ve tried to pass the XML document as string (using the xmlstr parameter) and XSL as parsed object (using the xslobj parameter) returned by the $.get call. Works perfectly in FF, fails miserably in IE7. The error message indicates that the imports requested with xsl:import don’t work at all. Back to the drawing board …