[erp5_web_renderjs_ui] Do not crash if no error is passed

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_launcher_js.js

@@ -137,7 +137,7 @@
       error = error.target.error;
     }
 
-    if (error.target instanceof XMLHttpRequest) {
+    if ((error !== undefined) && (error.target instanceof XMLHttpRequest)) {
       error_text = error.target.toString() + " " +
         error.target.status + " " +
         error.target.statusText + "\n" +

bt5/erp5_web_renderjs_ui/PathTemplateItem/web_page_module/rjs_gadget_erp5_launcher_js.xml

@@ -230,7 +230,7 @@
             </item>
             <item>
                 <key> <string>serial</string> </key>
-                <value> <string>966.11429.50874.16537</string> </value>
+                <value> <string>966.11431.6711.50466</string> </value>
             </item>
             <item>
                 <key> <string>state</string> </key>
@@ -248,7 +248,7 @@
                     </tuple>
                     <state>
                       <tuple>
-                        <float>1521043626.08</float>
+                        <float>1521043696.52</float>
                         <string>UTC</string>
                       </tuple>
                     </state>