Merge pull request #344 from ambit-tsai/master

提高getLocation函数的ie8兼容性

Author: RubyLouvre

packages/router/history.js

@@ -5,14 +5,19 @@ import {
 export var modeObject = {}
 //伪造一个Location对象
 function getLocation(source) {
-    return {
-        ...source.location,
+    const location = {
         getPath() {
             return modeObject.value === "hash" ? this.hash.slice(1) : this.pathname
         },
         state: source.history.state,
         key: (source.history.state && source.history.state.key) || "initial"
     };
+    for (const key in source.location) {
+        if (Object.prototype.hasOwnProperty.call(source.location, key)) {
+            location[key] = source.location[key];
+        }
+    }
+    return location;
 }
 
 //伪造一个History对象
@@ -175,4 +180,4 @@ export {
     navigate,
     createHistory,
     createMemorySource
-};
+};