+ debug info if web resources can not be loaded

scripts/curae.sh

@@ -56,7 +56,17 @@ execute_script() {
     parameter_1=$2
     parameter_2=$3
     echo "execute: ${file} ${parameter_1} ${parameter_2}"
-    wget -q ${scripts_url}/${file} -O /tmp/${file}
+    resource_url=${scripts_url}/${file}
+
+    if ! wget -q --method=HEAD ${resource_url};
+    then
+        echo "error: unable to load '${resource_url}'"
+        echo ""
+        wget -v ${resource_url}
+        exit 1
+    fi
+
+    wget -q ${resource_url} -O /tmp/${file}
     chmod 755 /tmp/*.sh
     /tmp/${file} ${parameter_1} ${parameter_2}
 }