Fixed XPath

src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/client/content.xsl

@@ -1034,7 +1034,7 @@ exclude-result-prefixes="#all"
         <xsl:variable name="this" select="ancestor::div[@about][1]/@about" as="xs:anyURI"/>
         <xsl:variable name="content-uri" select="(@about, $this)[1]" as="xs:anyURI"/> <!-- fallback to @about for charts, queries etc. -->
         <xsl:variable name="content-value" select="ixsl:get(., 'dataset.contentValue')" as="xs:anyURI"/> <!-- get the value of the @data-content-value attribute -->
-        <xsl:variable name="graph" select="if (ixsl:contains(., 'dataset.contentGraph')) then xs:anyURI(ixsl:get(., 'dataset.contentGraph'))" as="xs:anyURI?"/> <!-- get the value of the @data-content-graph attribute -->
+        <xsl:variable name="graph" select="if (ixsl:contains(., 'dataset.contentGraph')) then xs:anyURI(ixsl:get(., 'dataset.contentGraph')) else ()" as="xs:anyURI?"/> <!-- get the value of the @data-content-graph attribute -->
         <xsl:variable name="mode" select="if (ixsl:contains(., 'dataset.contentMode')) then xs:anyURI(ixsl:get(., 'dataset.contentMode')) else ()" as="xs:anyURI?"/> <!-- get the value of the @data-content-mode attribute -->
         <xsl:variable name="container" select="." as="element()"/>
         <xsl:variable name="progress-container" select="if (contains-token(@class, 'row-fluid')) then ./div[contains-token(@class, 'main')] else ." as="element()"/>