Make sure server URL always ends with '/'

plugins/audio.js

@@ -67,7 +67,7 @@ export default ({ app }, inject) => {
     // this needs to be set in app/actions as well because it's not injecting for some reason
     let url = state.server
     if (book.collection > 0) {
-      url = new URL(book.collection + '/', state.server).href
+      url = state.server + book.collection + '/'
     }
     return url
   })

store/app/getters.js

@@ -3,7 +3,7 @@ import { sha256 } from 'js-sha256'
 export function getServerUrl (state) {
   let url = state.server
   if (state.currentCollection > 0) {
-    url = new URL(state.currentCollection + '/', state.server).href
+    url = state.server + state.currentCollection + '/'
   }
   return url
 }

store/app/mutations.js

@@ -54,7 +54,7 @@ export function loginStatus (state, data) {
 }
 
 export function server (state, data) {
-  state.server = data
+  state.server = new URL('', data).href
 }
 
 export function secret (state, data) {