gadget: catch errors from render()

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/erp5_gadgetfield.js.js

@@ -105,7 +105,12 @@
                     "key": sub_key,
                     "value": sub_value
                   }
-                )
+                ).push(undefined, function (error) {
+                  /* TODO: Highlight the gadget element with a small colored
+                   *       error message. Clicking on the element could unroll
+                   *       more information like the traceback. */
+                  console.log(error);
+                })
               );
             }
             if (gadget_attributes[i].sandbox === "iframe") {

product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/erp5_gadgetfield.js.xml

@@ -12,7 +12,7 @@
         </item>
         <item>
             <key> <string>_EtagSupport__etag</string> </key>
-            <value> <string>ts20545059.65</string> </value>
+            <value> <string>ts64799067.07</string> </value>
         </item>
         <item>
             <key> <string>__name__</string> </key>
@@ -28,7 +28,7 @@
         </item>
         <item>
             <key> <string>size</string> </key>
-            <value> <int>7063</int> </value>
+            <value> <int>7383</int> </value>
         </item>
         <item>
             <key> <string>title</string> </key>