--- a/svghmi/gen_index_xhtml.xslt	Thu Aug 27 09:59:35 2020 +0200
+++ b/svghmi/gen_index_xhtml.xslt	Thu Aug 27 14:34:00 2020 +0200
@@ -3587,10 +3587,22 @@
     </xsl:variable>
     <func:result select="$widget_elts[@id=$eltid]/@inkscape:label"/>
   </func:function>
+  <xsl:template mode="json_table_render_except_comments" match="svg:*">
+    <xsl:param name="expressions"/>
+    <xsl:param name="widget_elts"/>
+    <xsl:variable name="label" select="func:filter_non_widget_label(., $widget_elts)"/>
+    <xsl:if test="not(starts-with($label,'#'))">
+      <xsl:apply-templates mode="json_table_render" select=".">
+        <xsl:with-param name="expressions" select="$expressions"/>
+        <xsl:with-param name="widget_elts" select="$widget_elts"/>
+        <xsl:with-param name="label" select="$label"/>
+      </xsl:apply-templates>
+    </xsl:if>
+  </xsl:template>
   <xsl:template mode="json_table_render" match="svg:*">
     <xsl:param name="expressions"/>
     <xsl:param name="widget_elts"/>
-    <xsl:variable name="label" select="func:filter_non_widget_label(., $widget_elts)"/>
+    <xsl:param name="label"/>
     <xsl:apply-templates mode="json_table_elt_render" select=".">
       <xsl:with-param name="expressions" select="func:json_expressions($expressions, $label)"/>
     </xsl:apply-templates>
@@ -3598,6 +3610,7 @@
   <xsl:template mode="json_table_render" match="svg:g">
     <xsl:param name="expressions"/>
     <xsl:param name="widget_elts"/>
+    <xsl:param name="label"/>
     <xsl:variable name="gid" select="@id"/>
     <xsl:variable name="varprefix">
       <xsl:text>obj_</xsl:text>
@@ -3648,8 +3661,7 @@
     <xsl:value-of select="@style"/>
     <xsl:text>");
 </xsl:text>
-    <xsl:variable name="label" select="func:filter_non_widget_label(., $widget_elts)"/>
-    <xsl:apply-templates mode="json_table_render" select="*">
+    <xsl:apply-templates mode="json_table_render_except_comments" select="*">
       <xsl:with-param name="expressions" select="func:json_expressions(exsl:node-set($new_expressions), $label)"/>
       <xsl:with-param name="widget_elts" select="$widget_elts"/>
     </xsl:apply-templates>
@@ -3692,7 +3704,7 @@
 </xsl:text>
     <xsl:text>        console.log(range,position,jdata);
 </xsl:text>
-    <xsl:apply-templates mode="json_table_render" select="$data_elt/*">
+    <xsl:apply-templates mode="json_table_render_except_comments" select="$data_elt">
       <xsl:with-param name="expressions" select="$initexpr_ns"/>
       <xsl:with-param name="widget_elts" select="$hmi_element/*[@inkscape:label = 'data']/descendant::svg:*"/>
     </xsl:apply-templates>

--- a/svghmi/widget_jsontable.ysl2	Thu Aug 27 09:59:35 2020 +0200
+++ b/svghmi/widget_jsontable.ysl2	Thu Aug 27 14:34:00 2020 +0200
@@ -70,7 +70,7 @@
                 choose {
                     when "contains($suffix,'=')" {
                         const "name", "substring-before($suffix,'=')";
-                        if "$expr/@name[. != $name]" 
+                        if "$expr/@name[. != $name]"
                             error > JsonTable : missplaced '=' or inconsistent names in Json data expressions.
                         attrib "name" value "$name";
                         attrib "content" > «$expr/@content»«substring-after($suffix,'=')»
@@ -144,18 +144,32 @@
     result "$widget_elts[@id=$eltid]/@inkscape:label";
 }
 
+template "svg:*", mode="json_table_render_except_comments"{
+    param "expressions";
+    param "widget_elts";
+
+    const "label", "func:filter_non_widget_label(., $widget_elts)";
+    // filter out "# commented" elements
+    if "not(starts-with($label,'#'))" 
+        apply ".", mode="json_table_render"{
+            with "expressions", "$expressions";
+            with "widget_elts", "$widget_elts";
+            with "label", "$label";
+        }
+}
+
 template "svg:*", mode="json_table_render" {
     param "expressions";
     param "widget_elts";
-    const "label", "func:filter_non_widget_label(., $widget_elts)";
-    apply ".", mode="json_table_elt_render" {
+    param "label";
+    apply ".", mode="json_table_elt_render"
         with "expressions", "func:json_expressions($expressions, $label)";
-    }
 }
 
 template "svg:g", mode="json_table_render" {
     param "expressions";
     param "widget_elts";
+    param "label";
     const "gid", "@id";
 
     // use intermediate variables for optimization
@@ -179,8 +193,7 @@
     // revert hiding in case it did happen before
     |           id("«@id»").setAttribute("style", "«@style»");
 
-    const "label", "func:filter_non_widget_label(., $widget_elts)";
-    apply "*", mode="json_table_render" {
+    apply "*", mode="json_table_render_except_comments" {
         with "expressions", "func:json_expressions(exsl:node-set($new_expressions), $label)";
         with "widget_elts", "$widget_elts";
     }
@@ -200,7 +213,7 @@
     |         this.apply_hmi_value(1, range);
     |         this.apply_hmi_value(2, position);
     |         console.log(range,position,jdata);
-    apply "$data_elt/*", mode="json_table_render" {
+    apply "$data_elt", mode="json_table_render_except_comments" {
         with "expressions","$initexpr_ns";
         with "widget_elts","$hmi_element/*[@inkscape:label = 'data']/descendant::svg:*";
     }