no message

src/mixins/index.js

@@ -77,7 +77,7 @@ window.backPage = function () {
   if (pages.length > 1) {
     navToPage({ delta: 1 }, 'navigateBack')
   } else {
-    if (window.location.indexOf('/packageHome/pages/codeActivity/activityExplain') > -1) {
+    if (window.location.href.indexOf('/packageHome/pages/codeActivity/activityExplain') > -1) {
       window.history.back()
     } else {
       var searchParams = window.location.search