init

user/plugins/admin/themes/grav/app/utils/storage.js

@@ -0,0 +1,41 @@
+// localStorage
+(function() {
+    function isSupported() {
+        var item = 'localStoragePollyfill';
+        try {
+            localStorage.setItem(item, item);
+            localStorage.removeItem(item);
+            sessionStorage.setItem(item, item);
+            sessionStorage.removeItem(item);
+            return true;
+        } catch (e) {
+            return false;
+        }
+    }
+
+    if (!isSupported()) {
+        try {
+            Storage.prototype._data = {};
+
+            Storage.prototype.setItem = function(id, val) {
+                this._data[id] = String(val);
+                return this._data[id];
+            };
+
+            Storage.prototype.getItem = function(id) {
+                return this._data.hasOwnProperty(id) ? this._data[id] : undefined;
+            };
+
+            Storage.prototype.removeItem = function(id) {
+                return delete this._data[id];
+            };
+
+            Storage.prototype.clear = function() {
+                this._data = {};
+                return this._data;
+            };
+        } catch (e) {
+            console.error('localStorage pollyfill error: ', e);
+        }
+    }
+}());