[backend] fix: 修复异常处理和类型转换问题

frontend/node_modules/object.entries/implementation.js

@@ -0,0 +1,17 @@
+'use strict';
+
+var RequireObjectCoercible = require('es-object-atoms/RequireObjectCoercible');
+var callBound = require('call-bound');
+var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable');
+var $push = callBound('Array.prototype.push');
+
+module.exports = function entries(O) {
+	var obj = RequireObjectCoercible(O);
+	var entrys = [];
+	for (var key in obj) {
+		if ($isEnumerable(obj, key)) { // checks own-ness as well
+			$push(entrys, [key, obj[key]]);
+		}
+	}
+	return entrys;
+};