[TASK] Add cache breaker as variable and scss

.sass-lint.yml

@@ -5,3 +5,5 @@ rules:
   no-vendor-prefixes: 0
   # Needed for old 'display: -vendor-prefix-property' for higher browser-support
   no-duplicate-properties: 0
+  # Needed for unique-id()
+  empty-args: 0

README.md

@@ -261,6 +261,12 @@ Example for `supportedLocale`:
       "en",
       "de"
     ]
+    
+## cacheBreaker (string)
+
+Will be replaced in every build to avoid missing or outdated language strings, because language.json isn't up to date.
+
+_Fixed value (y0z)._
 
 ## Sponsoring / Supporting
 - [BrowserStack](https://www.browserstack.com/) for providing a awesome testing service for hundreds of browsers

assets/icons/icon.scss

@@ -1,13 +1,15 @@
 // Needed for standalone scss
 // @import 'icon-mixin';
 
+$cache-breaker: unique-id();
+
 @font-face {
   font-family: 'ionicons';
   font-style: normal;
   font-weight: normal;
-  src: url('fonts/icon.woff2') format('woff2'),
+  src: url('fonts/icon.woff2?rel=#{$cache-breaker}') format('woff2'),
-  url('fonts/icon.woff') format('woff'),
+  url('fonts/icon.woff?rel=#{$cache-breaker}') format('woff'),
-  url('fonts/icon.ttf') format('truetype');
+  url('fonts/icon.ttf?rel=#{$cache-breaker}') format('truetype');
 }
 
 [class^='ion-'], [class*=' ion-'] {

config.json

@@ -114,5 +114,6 @@
   "supportedLocale": [
     "en",
     "de"
-  ]
+  ],
+  "cacheBreaker": "y0z"
 }

lib/main.js

@@ -178,7 +178,7 @@ define(['polyglot', 'moment', 'router', 'leaflet', 'gui', 'helper'],
       });
 
       window._ = new Polyglot({locale: locale, allowMissing: true});
-      helper.getJSON('locale/' + _.locale() + '.json').then(setTranslation);
+      helper.getJSON('locale/' + _.locale() + '.json?' + config.cacheBreaker).then(setTranslation);
 
       var router = new Router();
 

tasks/build.js

@@ -149,13 +149,22 @@ module.exports = function exports(grunt) {
       }
     },
     cachebreaker: {
-      default: {
+      js: {
         options: {
           match: ['app.js']
         },
         files: {
           src: ['build/index.html']
         }
+      },
+      variable: {
+        options: {
+          match: ['y*z'],
+          position: 'overwrite'
+        },
+        files: {
+          src: ['build/config.json']
+        }
       }
     }
   });