更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/svgo/plugins/removeEmptyAttrs.js

@@ -0,0 +1,29 @@
+'use strict';
+
+exports.type = 'perItem';
+
+exports.active = true;
+
+exports.description = 'removes empty attributes';
+
+/**
+ * Remove attributes with empty values.
+ *
+ * @param {Object} item current iteration item
+ * @return {Boolean} if false, item will be filtered out
+ *
+ * @author Kir Belevich
+ */
+exports.fn = function(item) {
+
+    if (item.elem) {
+
+        item.eachAttr(function(attr) {
+            if (attr.value === '') {
+                item.removeAttr(attr.name);
+            }
+        });
+
+    }
+
+};