fix(auth): add path helper function

lib/core/middleware.js

@@ -1,5 +1,5 @@
 import Middleware from '../middleware'
-import { routeOption, getMatchedComponents } from './utilities'
+import { routeOption, getMatchedComponents, normalizePath } from './utilities'
 
 Middleware.auth = function (ctx) {
   // Disable middleware if options: { auth: false } is set on the route
@@ -19,15 +19,15 @@ Middleware.auth = function (ctx) {
   if (ctx.app.$auth.$state.loggedIn) {
     // -- Authorized --
     // Redirect to home page if inside login page (or login page disabled)
-    if (!login || ctx.route.path === login.split('?')[0]) {
+    if (!login || normalizePath(ctx.route.path) === normalizePath(login)) {
       ctx.app.$auth.redirect('home')
     }
   } else {
     // -- Guest --
     // Redirect to login page if not authorized and not inside callback page
     // (Those passing `callback` at runtime need to mark their callback component
     // with `auth: false` to avoid an unnecessary redirect from callback to login)
-    if (!callback || ctx.route.path !== callback.split('?')[0]) {
+    if (!callback || normalizePath(ctx.route.path) !== normalizePath(callback)) {
       ctx.app.$auth.redirect('login')
     }
   }

lib/core/utilities.js

@@ -53,3 +53,15 @@ export const getMatchedComponents = (route, matches = false) => {
     })
   }))
 }
+
+export function normalizePath (path = '') {
+  // Remove query string
+  let result = path.split('?')[0]
+
+  // Remove redundant / from the end of path
+  if (result.charAt(result.length - 1) === '/') {
+    result = result.slice(0, -1)
+  }
+
+  return result
+}