bmux/assets/localforage.nopromises.js

/*!
    localForage -- Offline Storage, Improved
    Version 1.4.0
    https://mozilla.github.io/localForage
    (c) 2013-2015 Mozilla, Apache License 2.0
*/
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		define([], factory);
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		exports["localforage"] = factory();
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		root["localforage"] = factory();
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/* 0 */
/***/ function(module, exports, __webpack_require__) {

	'use strict';

	exports.__esModule = true;

	function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

	var localForage = (function (globalObject) {
	    'use strict';

	    // Custom drivers are stored here when `defineDriver()` is called.
	    // They are shared across all instances of localForage.
	    var CustomDrivers = {};

	    var DriverType = {
	        INDEXEDDB: 'asyncStorage',
	        LOCALSTORAGE: 'localStorageWrapper',
	        WEBSQL: 'webSQLStorage'
	    };

	    var DefaultDriverOrder = [DriverType.INDEXEDDB, DriverType.WEBSQL, DriverType.LOCALSTORAGE];

	    var LibraryMethods = ['clear', 'getItem', 'iterate', 'key', 'keys', 'length', 'removeItem', 'setItem'];

	    var DefaultConfig = {
	        description: '',
	        driver: DefaultDriverOrder.slice(),
	        name: 'localforage',
	        // Default DB size is _JUST UNDER_ 5MB, as it's the highest size
	        // we can use without a prompt.
	        size: 4980736,
	        storeName: 'keyvaluepairs',
	        version: 1.0
	    };

	    var driverSupport = (function (self) {
	        var result = {};

	        // Check to see if IndexedDB is available and if it is the latest
	        // implementation; it's our preferred backend library. We use "_spec_test"
	        // as the name of the database because it's not the one we'll operate on,
	        // but it's useful to make sure its using the right spec.
	        // See: https://github.com/mozilla/localForage/issues/128
	        result[DriverType.INDEXEDDB] = !!(function () {
	            try {
	                // Initialize IndexedDB; fall back to vendor-prefixed versions
	                // if needed.
	                var indexedDB = indexedDB || self.indexedDB || self.webkitIndexedDB || self.mozIndexedDB || self.OIndexedDB || self.msIndexedDB;
	                // We mimic PouchDB here; just UA test for Safari (which, as of
	                // iOS 8/Yosemite, doesn't properly support IndexedDB).
	                // IndexedDB support is broken and different from Blink's.
	                // This is faster than the test case (and it's sync), so we just
	                // do this. *SIGH*
	                // http://bl.ocks.org/nolanlawson/raw/c83e9039edf2278047e9/
	                //
	                // We test for openDatabase because IE Mobile identifies itself
	                // as Safari. Oh the lulz...
	                if (typeof self.openDatabase !== 'undefined' && self.navigator && self.navigator.userAgent && /Safari/.test(self.navigator.userAgent) && !/Chrome/.test(self.navigator.userAgent)) {
	                    return false;
	                }

	                return indexedDB && typeof indexedDB.open === 'function' &&
	                // Some Samsung/HTC Android 4.0-4.3 devices
	                // have older IndexedDB specs; if this isn't available
	                // their IndexedDB is too old for us to use.
	                // (Replaces the onupgradeneeded test.)
	                typeof self.IDBKeyRange !== 'undefined';
	            } catch (e) {
	                return false;
	            }
	        })();

	        result[DriverType.WEBSQL] = !!(function () {
	            try {
	                return self.openDatabase;
	            } catch (e) {
	                return false;
	            }
	        })();

	        result[DriverType.LOCALSTORAGE] = !!(function () {
	            try {
	                return self.localStorage && 'setItem' in self.localStorage && self.localStorage.setItem;
	            } catch (e) {
	                return false;
	            }
	        })();

	        return result;
	    })(globalObject);

	    var isArray = Array.isArray || function (arg) {
	        return Object.prototype.toString.call(arg) === '[object Array]';
	    };

	    function callWhenReady(localForageInstance, libraryMethod) {
	        localForageInstance[libraryMethod] = function () {
	            var _args = arguments;
	            return localForageInstance.ready().then(function () {
	                return localForageInstance[libraryMethod].apply(localForageInstance, _args);
	            });
	        };
	    }

	    function extend() {
	        for (var i = 1; i < arguments.length; i++) {
	            var arg = arguments[i];

	            if (arg) {
	                for (var key in arg) {
	                    if (arg.hasOwnProperty(key)) {
	                        if (isArray(arg[key])) {
	                            arguments[0][key] = arg[key].slice();
	                        } else {
	                            arguments[0][key] = arg[key];
	                        }
	                    }
	                }
	            }
	        }

	        return arguments[0];
	    }

	    function isLibraryDriver(driverName) {
	        for (var driver in DriverType) {
	            if (DriverType.hasOwnProperty(driver) && DriverType[driver] === driverName) {
	                return true;
	            }
	        }

	        return false;
	    }

	    var LocalForage = (function () {
	        function LocalForage(options) {
	            _classCallCheck(this, LocalForage);

	            this.INDEXEDDB = DriverType.INDEXEDDB;
	            this.LOCALSTORAGE = DriverType.LOCALSTORAGE;
	            this.WEBSQL = DriverType.WEBSQL;

	            this._defaultConfig = extend({}, DefaultConfig);
	            this._config = extend({}, this._defaultConfig, options);
	            this._driverSet = null;
	            this._initDriver = null;
	            this._ready = false;
	            this._dbInfo = null;

	            this._wrapLibraryMethodsWithReady();
	            this.setDriver(this._config.driver);
	        }

	        // The actual localForage object that we expose as a module or via a
	        // global. It's extended by pulling in one of our other libraries.

	        // Set any config values for localForage; can be called anytime before
	        // the first API call (e.g. `getItem`, `setItem`).
	        // We loop through options so we don't overwrite existing config
	        // values.

	        LocalForage.prototype.config = function config(options) {
	            // If the options argument is an object, we use it to set values.
	            // Otherwise, we return either a specified config value or all
	            // config values.
	            if (typeof options === 'object') {
	                // If localforage is ready and fully initialized, we can't set
	                // any new configuration values. Instead, we return an error.
	                if (this._ready) {
	                    return new Error("Can't call config() after localforage " + 'has been used.');
	                }

	                for (var i in options) {
	                    if (i === 'storeName') {
	                        options[i] = options[i].replace(/\W/g, '_');
	                    }

	                    this._config[i] = options[i];
	                }

	                // after all config options are set and
	                // the driver option is used, try setting it
	                if ('driver' in options && options.driver) {
	                    this.setDriver(this._config.driver);
	                }

	                return true;
	            } else if (typeof options === 'string') {
	                return this._config[options];
	            } else {
	                return this._config;
	            }
	        };

	        // Used to define a custom driver, shared across all instances of
	        // localForage.

	        LocalForage.prototype.defineDriver = function defineDriver(driverObject, callback, errorCallback) {
	            var promise = new Promise(function (resolve, reject) {
	                try {
	                    var driverName = driverObject._driver;
	                    var complianceError = new Error('Custom driver not compliant; see ' + 'https://mozilla.github.io/localForage/#definedriver');
	                    var namingError = new Error('Custom driver name already in use: ' + driverObject._driver);

	                    // A driver name should be defined and not overlap with the
	                    // library-defined, default drivers.
	                    if (!driverObject._driver) {
	                        reject(complianceError);
	                        return;
	                    }
	                    if (isLibraryDriver(driverObject._driver)) {
	                        reject(namingError);
	                        return;
	                    }

	                    var customDriverMethods = LibraryMethods.concat('_initStorage');
	                    for (var i = 0; i < customDriverMethods.length; i++) {
	                        var customDriverMethod = customDriverMethods[i];
	                        if (!customDriverMethod || !driverObject[customDriverMethod] || typeof driverObject[customDriverMethod] !== 'function') {
	                            reject(complianceError);
	                            return;
	                        }
	                    }

	                    var supportPromise = Promise.resolve(true);
	                    if ('_support' in driverObject) {
	                        if (driverObject._support && typeof driverObject._support === 'function') {
	                            supportPromise = driverObject._support();
	                        } else {
	                            supportPromise = Promise.resolve(!!driverObject._support);
	                        }
	                    }

	                    supportPromise.then(function (supportResult) {
	                        driverSupport[driverName] = supportResult;
	                        CustomDrivers[driverName] = driverObject;
	                        resolve();
	                    }, reject);
	                } catch (e) {
	                    reject(e);
	                }
	            });

	            promise.then(callback, errorCallback);
	            return promise;
	        };

	        LocalForage.prototype.driver = function driver() {
	            return this._driver || null;
	        };

	        LocalForage.prototype.getDriver = function getDriver(driverName, callback, errorCallback) {
	            var self = this;
	            var getDriverPromise = (function () {
	                if (isLibraryDriver(driverName)) {
	                    switch (driverName) {
	                        case self.INDEXEDDB:
	                            return new Promise(function (resolve, reject) {
	                                resolve(__webpack_require__(1));
	                            });
	                        case self.LOCALSTORAGE:
	                            return new Promise(function (resolve, reject) {
	                                resolve(__webpack_require__(2));
	                            });
	                        case self.WEBSQL:
	                            return new Promise(function (resolve, reject) {
	                                resolve(__webpack_require__(4));
	                            });
	                    }
	                } else if (CustomDrivers[driverName]) {
	                    return Promise.resolve(CustomDrivers[driverName]);
	                }

	                return Promise.reject(new Error('Driver not found.'));
	            })();

	            getDriverPromise.then(callback, errorCallback);
	            return getDriverPromise;
	        };

	        LocalForage.prototype.getSerializer = function getSerializer(callback) {
	            var serializerPromise = new Promise(function (resolve, reject) {
	                resolve(__webpack_require__(3));
	            });
	            if (callback && typeof callback === 'function') {
	                serializerPromise.then(function (result) {
	                    callback(result);
	                });
	            }
	            return serializerPromise;
	        };

	        LocalForage.prototype.ready = function ready(callback) {
	            var self = this;

	            var promise = self._driverSet.then(function () {
	                if (self._ready === null) {
	                    self._ready = self._initDriver();
	                }

	                return self._ready;
	            });

	            promise.then(callback, callback);
	            return promise;
	        };

	        LocalForage.prototype.setDriver = function setDriver(drivers, callback, errorCallback) {
	            var self = this;

	            if (!isArray(drivers)) {
	                drivers = [drivers];
	            }

	            var supportedDrivers = this._getSupportedDrivers(drivers);

	            function setDriverToConfig() {
	                self._config.driver = self.driver();
	            }

	            function initDriver(supportedDrivers) {
	                return function () {
	                    var currentDriverIndex = 0;

	                    function driverPromiseLoop() {
	                        while (currentDriverIndex < supportedDrivers.length) {
	                            var driverName = supportedDrivers[currentDriverIndex];
	                            currentDriverIndex++;

	                            self._dbInfo = null;
	                            self._ready = null;

	                            return self.getDriver(driverName).then(function (driver) {
	                                self._extend(driver);
	                                setDriverToConfig();

	                                self._ready = self._initStorage(self._config);
	                                return self._ready;
	                            })['catch'](driverPromiseLoop);
	                        }

	                        setDriverToConfig();
	                        var error = new Error('No available storage method found.');
	                        self._driverSet = Promise.reject(error);
	                        return self._driverSet;
	                    }

	                    return driverPromiseLoop();
	                };
	            }

	            // There might be a driver initialization in progress
	            // so wait for it to finish in order to avoid a possible
	            // race condition to set _dbInfo
	            var oldDriverSetDone = this._driverSet !== null ? this._driverSet['catch'](function () {
	                return Promise.resolve();
	            }) : Promise.resolve();

	            this._driverSet = oldDriverSetDone.then(function () {
	                var driverName = supportedDrivers[0];
	                self._dbInfo = null;
	                self._ready = null;

	                return self.getDriver(driverName).then(function (driver) {
	                    self._driver = driver._driver;
	                    setDriverToConfig();
	                    self._wrapLibraryMethodsWithReady();
	                    self._initDriver = initDriver(supportedDrivers);
	                });
	            })['catch'](function () {
	                setDriverToConfig();
	                var error = new Error('No available storage method found.');
	                self._driverSet = Promise.reject(error);
	                return self._driverSet;
	            });

	            this._driverSet.then(callback, errorCallback);
	            return this._driverSet;
	        };

	        LocalForage.prototype.supports = function supports(driverName) {
	            return !!driverSupport[driverName];
	        };

	        LocalForage.prototype._extend = function _extend(libraryMethodsAndProperties) {
	            extend(this, libraryMethodsAndProperties);
	        };

	        LocalForage.prototype._getSupportedDrivers = function _getSupportedDrivers(drivers) {
	            var supportedDrivers = [];
	            for (var i = 0, len = drivers.length; i < len; i++) {
	                var driverName = drivers[i];
	                if (this.supports(driverName)) {
	                    supportedDrivers.push(driverName);
	                }
	            }
	            return supportedDrivers;
	        };

	        LocalForage.prototype._wrapLibraryMethodsWithReady = function _wrapLibraryMethodsWithReady() {
	            // Add a stub for each driver API method that delays the call to the
	            // corresponding driver method until localForage is ready. These stubs
	            // will be replaced by the driver methods as soon as the driver is
	            // loaded, so there is no performance impact.
	            for (var i = 0; i < LibraryMethods.length; i++) {
	                callWhenReady(this, LibraryMethods[i]);
	            }
	        };

	        LocalForage.prototype.createInstance = function createInstance(options) {
	            return new LocalForage(options);
	        };

	        return LocalForage;
	    })();

	    return new LocalForage();
	})(typeof window !== 'undefined' ? window : self);
	exports['default'] = localForage;
	module.exports = exports['default'];

/***/ },
/* 1 */
/***/ function(module, exports) {

	// Some code originally from async_storage.js in
	// [Gaia](https://github.com/mozilla-b2g/gaia).
	'use strict';

	exports.__esModule = true;
	var asyncStorage = (function (globalObject) {
	    'use strict';

	    // Initialize IndexedDB; fall back to vendor-prefixed versions if needed.
	    var indexedDB = indexedDB || globalObject.indexedDB || globalObject.webkitIndexedDB || globalObject.mozIndexedDB || globalObject.OIndexedDB || globalObject.msIndexedDB;

	    // If IndexedDB isn't available, we get outta here!
	    if (!indexedDB) {
	        return;
	    }

	    var DETECT_BLOB_SUPPORT_STORE = 'local-forage-detect-blob-support';
	    var supportsBlobs;
	    var dbContexts;

	    // Abstracts constructing a Blob object, so it also works in older
	    // browsers that don't support the native Blob constructor. (i.e.
	    // old QtWebKit versions, at least).
	    function _createBlob(parts, properties) {
	        parts = parts || [];
	        properties = properties || {};
	        try {
	            return new Blob(parts, properties);
	        } catch (e) {
	            if (e.name !== 'TypeError') {
	                throw e;
	            }
	            var BlobBuilder = globalObject.BlobBuilder || globalObject.MSBlobBuilder || globalObject.MozBlobBuilder || globalObject.WebKitBlobBuilder;
	            var builder = new BlobBuilder();
	            for (var i = 0; i < parts.length; i += 1) {
	                builder.append(parts[i]);
	            }
	            return builder.getBlob(properties.type);
	        }
	    }

	    // Transform a binary string to an array buffer, because otherwise
	    // weird stuff happens when you try to work with the binary string directly.
	    // It is known.
	    // From http://stackoverflow.com/questions/14967647/ (continues on next line)
	    // encode-decode-image-with-base64-breaks-image (2013-04-21)
	    function _binStringToArrayBuffer(bin) {
	        var length = bin.length;
	        var buf = new ArrayBuffer(length);
	        var arr = new Uint8Array(buf);
	        for (var i = 0; i < length; i++) {
	            arr[i] = bin.charCodeAt(i);
	        }
	        return buf;
	    }

	    // Fetch a blob using ajax. This reveals bugs in Chrome < 43.
	    // For details on all this junk:
	    // https://github.com/nolanlawson/state-of-binary-data-in-the-browser#readme
	    function _blobAjax(url) {
	        return new Promise(function (resolve, reject) {
	            var xhr = new XMLHttpRequest();
	            xhr.open('GET', url);
	            xhr.withCredentials = true;
	            xhr.responseType = 'arraybuffer';

	            xhr.onreadystatechange = function () {
	                if (xhr.readyState !== 4) {
	                    return;
	                }
	                if (xhr.status === 200) {
	                    return resolve({
	                        response: xhr.response,
	                        type: xhr.getResponseHeader('Content-Type')
	                    });
	                }
	                reject({ status: xhr.status, response: xhr.response });
	            };
	            xhr.send();
	        });
	    }

	    //
	    // Detect blob support. Chrome didn't support it until version 38.
	    // In version 37 they had a broken version where PNGs (and possibly
	    // other binary types) aren't stored correctly, because when you fetch
	    // them, the content type is always null.
	    //
	    // Furthermore, they have some outstanding bugs where blobs occasionally
	    // are read by FileReader as null, or by ajax as 404s.
	    //
	    // Sadly we use the 404 bug to detect the FileReader bug, so if they
	    // get fixed independently and released in different versions of Chrome,
	    // then the bug could come back. So it's worthwhile to watch these issues:
	    // 404 bug: https://code.google.com/p/chromium/issues/detail?id=447916
	    // FileReader bug: https://code.google.com/p/chromium/issues/detail?id=447836
	    //
	    function _checkBlobSupportWithoutCaching(idb) {
	        return new Promise(function (resolve, reject) {
	            var blob = _createBlob([''], { type: 'image/png' });
	            var txn = idb.transaction([DETECT_BLOB_SUPPORT_STORE], 'readwrite');
	            txn.objectStore(DETECT_BLOB_SUPPORT_STORE).put(blob, 'key');
	            txn.oncomplete = function () {
	                // have to do it in a separate transaction, else the correct
	                // content type is always returned
	                var blobTxn = idb.transaction([DETECT_BLOB_SUPPORT_STORE], 'readwrite');
	                var getBlobReq = blobTxn.objectStore(DETECT_BLOB_SUPPORT_STORE).get('key');
	                getBlobReq.onerror = reject;
	                getBlobReq.onsuccess = function (e) {

	                    var storedBlob = e.target.result;
	                    var url = URL.createObjectURL(storedBlob);

	                    _blobAjax(url).then(function (res) {
	                        resolve(!!(res && res.type === 'image/png'));
	                    }, function () {
	                        resolve(false);
	                    }).then(function () {
	                        URL.revokeObjectURL(url);
	                    });
	                };
	            };
	            txn.onerror = txn.onabort = reject;
	        })['catch'](function () {
	            return false; // error, so assume unsupported
	        });
	    }

	    function _checkBlobSupport(idb) {
	        if (typeof supportsBlobs === 'boolean') {
	            return Promise.resolve(supportsBlobs);
	        }
	        return _checkBlobSupportWithoutCaching(idb).then(function (value) {
	            supportsBlobs = value;
	            return supportsBlobs;
	        });
	    }

	    // encode a blob for indexeddb engines that don't support blobs
	    function _encodeBlob(blob) {
	        return new Promise(function (resolve, reject) {
	            var reader = new FileReader();
	            reader.onerror = reject;
	            reader.onloadend = function (e) {
	                var base64 = btoa(e.target.result || '');
	                resolve({
	                    __local_forage_encoded_blob: true,
	                    data: base64,
	                    type: blob.type
	                });
	            };
	            reader.readAsBinaryString(blob);
	        });
	    }

	    // decode an encoded blob
	    function _decodeBlob(encodedBlob) {
	        var arrayBuff = _binStringToArrayBuffer(atob(encodedBlob.data));
	        return _createBlob([arrayBuff], { type: encodedBlob.type });
	    }

	    // is this one of our fancy encoded blobs?
	    function _isEncodedBlob(value) {
	        return value && value.__local_forage_encoded_blob;
	    }

	    // Specialize the default `ready()` function by making it dependent
	    // on the current database operations. Thus, the driver will be actually
	    // ready when it's been initialized (default) *and* there are no pending
	    // operations on the database (initiated by some other instances).
	    function _fullyReady(callback) {
	        var self = this;

	        var promise = self._initReady().then(function () {
	            var dbContext = dbContexts[self._dbInfo.name];

	            if (dbContext && dbContext.dbReady) {
	                return dbContext.dbReady;
	            }
	        });

	        promise.then(callback, callback);
	        return promise;
	    }

	    function _deferReadiness(dbInfo) {
	        var dbContext = dbContexts[dbInfo.name];

	        // Create a deferred object representing the current database operation.
	        var deferredOperation = {};

	        deferredOperation.promise = new Promise(function (resolve) {
	            deferredOperation.resolve = resolve;
	        });

	        // Enqueue the deferred operation.
	        dbContext.deferredOperations.push(deferredOperation);

	        // Chain its promise to the database readiness.
	        if (!dbContext.dbReady) {
	            dbContext.dbReady = deferredOperation.promise;
	        } else {
	            dbContext.dbReady = dbContext.dbReady.then(function () {
	                return deferredOperation.promise;
	            });
	        }
	    }

	    function _advanceReadiness(dbInfo) {
	        var dbContext = dbContexts[dbInfo.name];

	        // Dequeue a deferred operation.
	        var deferredOperation = dbContext.deferredOperations.pop();

	        // Resolve its promise (which is part of the database readiness
	        // chain of promises).
	        if (deferredOperation) {
	            deferredOperation.resolve();
	        }
	    }

	    // Open the IndexedDB database (automatically creates one if one didn't
	    // previously exist), using any options set in the config.
	    function _initStorage(options) {
	        var self = this;
	        var dbInfo = {
	            db: null
	        };

	        if (options) {
	            for (var i in options) {
	                dbInfo[i] = options[i];
	            }
	        }

	        // Initialize a singleton container for all running localForages.
	        if (!dbContexts) {
	            dbContexts = {};
	        }

	        // Get the current context of the database;
	        var dbContext = dbContexts[dbInfo.name];

	        // ...or create a new context.
	        if (!dbContext) {
	            dbContext = {
	                // Running localForages sharing a database.
	                forages: [],
	                // Shared database.
	                db: null,
	                // Database readiness (promise).
	                dbReady: null,
	                // Deferred operations on the database.
	                deferredOperations: []
	            };
	            // Register the new context in the global container.
	            dbContexts[dbInfo.name] = dbContext;
	        }

	        // Register itself as a running localForage in the current context.
	        dbContext.forages.push(self);

	        // Replace the default `ready()` function with the specialized one.
	        if (!self._initReady) {
	            self._initReady = self.ready;
	            self.ready = _fullyReady;
	        }

	        // Create an array of initialization states of the related localForages.
	        var initPromises = [];

	        function ignoreErrors() {
	            // Don't handle errors here,
	            // just makes sure related localForages aren't pending.
	            return Promise.resolve();
	        }

	        for (var j = 0; j < dbContext.forages.length; j++) {
	            var forage = dbContext.forages[j];
	            if (forage !== self) {
	                // Don't wait for itself...
	                initPromises.push(forage._initReady()['catch'](ignoreErrors));
	            }
	        }

	        // Take a snapshot of the related localForages.
	        var forages = dbContext.forages.slice(0);

	        // Initialize the connection process only when
	        // all the related localForages aren't pending.
	        return Promise.all(initPromises).then(function () {
	            dbInfo.db = dbContext.db;
	            // Get the connection or open a new one without upgrade.
	            return _getOriginalConnection(dbInfo);
	        }).then(function (db) {
	            dbInfo.db = db;
	            if (_isUpgradeNeeded(dbInfo, self._defaultConfig.version)) {
	                // Reopen the database for upgrading.
	                return _getUpgradedConnection(dbInfo);
	            }
	            return db;
	        }).then(function (db) {
	            dbInfo.db = dbContext.db = db;
	            self._dbInfo = dbInfo;
	            // Share the final connection amongst related localForages.
	            for (var k = 0; k < forages.length; k++) {
	                var forage = forages[k];
	                if (forage !== self) {
	                    // Self is already up-to-date.
	                    forage._dbInfo.db = dbInfo.db;
	                    forage._dbInfo.version = dbInfo.version;
	                }
	            }
	        });
	    }

	    function _getOriginalConnection(dbInfo) {
	        return _getConnection(dbInfo, false);
	    }

	    function _getUpgradedConnection(dbInfo) {
	        return _getConnection(dbInfo, true);
	    }

	    function _getConnection(dbInfo, upgradeNeeded) {
	        return new Promise(function (resolve, reject) {

	            if (dbInfo.db) {
	                if (upgradeNeeded) {
	                    _deferReadiness(dbInfo);
	                    dbInfo.db.close();
	                } else {
	                    return resolve(dbInfo.db);
	                }
	            }

	            var dbArgs = [dbInfo.name];

	            if (upgradeNeeded) {
	                dbArgs.push(dbInfo.version);
	            }

	            var openreq = indexedDB.open.apply(indexedDB, dbArgs);

	            if (upgradeNeeded) {
	                openreq.onupgradeneeded = function (e) {
	                    var db = openreq.result;
	                    try {
	                        db.createObjectStore(dbInfo.storeName);
	                        if (e.oldVersion <= 1) {
	                            // Added when support for blob shims was added
	                            db.createObjectStore(DETECT_BLOB_SUPPORT_STORE);
	                        }
	                    } catch (ex) {
	                        if (ex.name === 'ConstraintError') {
	                            globalObject.console.warn('The database "' + dbInfo.name + '"' + ' has been upgraded from version ' + e.oldVersion + ' to version ' + e.newVersion + ', but the storage "' + dbInfo.storeName + '" already exists.');
	                        } else {
	                            throw ex;
	                        }
	                    }
	                };
	            }

	            openreq.onerror = function () {
	                reject(openreq.error);
	            };

	            openreq.onsuccess = function () {
	                resolve(openreq.result);
	                _advanceReadiness(dbInfo);
	            };
	        });
	    }

	    function _isUpgradeNeeded(dbInfo, defaultVersion) {
	        if (!dbInfo.db) {
	            return true;
	        }

	        var isNewStore = !dbInfo.db.objectStoreNames.contains(dbInfo.storeName);
	        var isDowngrade = dbInfo.version < dbInfo.db.version;
	        var isUpgrade = dbInfo.version > dbInfo.db.version;

	        if (isDowngrade) {
	            // If the version is not the default one
	            // then warn for impossible downgrade.
	            if (dbInfo.version !== defaultVersion) {
	                globalObject.console.warn('The database "' + dbInfo.name + '"' + ' can\'t be downgraded from version ' + dbInfo.db.version + ' to version ' + dbInfo.version + '.');
	            }
	            // Align the versions to prevent errors.
	            dbInfo.version = dbInfo.db.version;
	        }

	        if (isUpgrade || isNewStore) {
	            // If the store is new then increment the version (if needed).
	            // This will trigger an "upgradeneeded" event which is required
	            // for creating a store.
	            if (isNewStore) {
	                var incVersion = dbInfo.db.version + 1;
	                if (incVersion > dbInfo.version) {
	                    dbInfo.version = incVersion;
	                }
	            }

	            return true;
	        }

	        return false;
	    }

	    function getItem(key, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly').objectStore(dbInfo.storeName);
	                var req = store.get(key);

	                req.onsuccess = function () {
	                    var value = req.result;
	                    if (value === undefined) {
	                        value = null;
	                    }
	                    if (_isEncodedBlob(value)) {
	                        value = _decodeBlob(value);
	                    }
	                    resolve(value);
	                };

	                req.onerror = function () {
	                    reject(req.error);
	                };
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Iterate over all items stored in database.
	    function iterate(iterator, callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly').objectStore(dbInfo.storeName);

	                var req = store.openCursor();
	                var iterationNumber = 1;

	                req.onsuccess = function () {
	                    var cursor = req.result;

	                    if (cursor) {
	                        var value = cursor.value;
	                        if (_isEncodedBlob(value)) {
	                            value = _decodeBlob(value);
	                        }
	                        var result = iterator(value, cursor.key, iterationNumber++);

	                        if (result !== void 0) {
	                            resolve(result);
	                        } else {
	                            cursor['continue']();
	                        }
	                    } else {
	                        resolve();
	                    }
	                };

	                req.onerror = function () {
	                    reject(req.error);
	                };
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);

	        return promise;
	    }

	    function setItem(key, value, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = new Promise(function (resolve, reject) {
	            var dbInfo;
	            self.ready().then(function () {
	                dbInfo = self._dbInfo;
	                if (value instanceof Blob) {
	                    return _checkBlobSupport(dbInfo.db).then(function (blobSupport) {
	                        if (blobSupport) {
	                            return value;
	                        }
	                        return _encodeBlob(value);
	                    });
	                }
	                return value;
	            }).then(function (value) {
	                var transaction = dbInfo.db.transaction(dbInfo.storeName, 'readwrite');
	                var store = transaction.objectStore(dbInfo.storeName);

	                // The reason we don't _save_ null is because IE 10 does
	                // not support saving the `null` type in IndexedDB. How
	                // ironic, given the bug below!
	                // See: https://github.com/mozilla/localForage/issues/161
	                if (value === null) {
	                    value = undefined;
	                }

	                transaction.oncomplete = function () {
	                    // Cast to undefined so the value passed to
	                    // callback/promise is the same as what one would get out
	                    // of `getItem()` later. This leads to some weirdness
	                    // (setItem('foo', undefined) will return `null`), but
	                    // it's not my fault localStorage is our baseline and that
	                    // it's weird.
	                    if (value === undefined) {
	                        value = null;
	                    }

	                    resolve(value);
	                };
	                transaction.onabort = transaction.onerror = function () {
	                    var err = req.error ? req.error : req.transaction.error;
	                    reject(err);
	                };

	                var req = store.put(value, key);
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function removeItem(key, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                var transaction = dbInfo.db.transaction(dbInfo.storeName, 'readwrite');
	                var store = transaction.objectStore(dbInfo.storeName);

	                // We use a Grunt task to make this safe for IE and some
	                // versions of Android (including those used by Cordova).
	                // Normally IE won't like `.delete()` and will insist on
	                // using `['delete']()`, but we have a build step that
	                // fixes this for us now.
	                var req = store['delete'](key);
	                transaction.oncomplete = function () {
	                    resolve();
	                };

	                transaction.onerror = function () {
	                    reject(req.error);
	                };

	                // The request will be also be aborted if we've exceeded our storage
	                // space.
	                transaction.onabort = function () {
	                    var err = req.error ? req.error : req.transaction.error;
	                    reject(err);
	                };
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function clear(callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                var transaction = dbInfo.db.transaction(dbInfo.storeName, 'readwrite');
	                var store = transaction.objectStore(dbInfo.storeName);
	                var req = store.clear();

	                transaction.oncomplete = function () {
	                    resolve();
	                };

	                transaction.onabort = transaction.onerror = function () {
	                    var err = req.error ? req.error : req.transaction.error;
	                    reject(err);
	                };
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function length(callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly').objectStore(dbInfo.storeName);
	                var req = store.count();

	                req.onsuccess = function () {
	                    resolve(req.result);
	                };

	                req.onerror = function () {
	                    reject(req.error);
	                };
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function key(n, callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            if (n < 0) {
	                resolve(null);

	                return;
	            }

	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly').objectStore(dbInfo.storeName);

	                var advanced = false;
	                var req = store.openCursor();
	                req.onsuccess = function () {
	                    var cursor = req.result;
	                    if (!cursor) {
	                        // this means there weren't enough keys
	                        resolve(null);

	                        return;
	                    }

	                    if (n === 0) {
	                        // We have the first key, return it if that's what they
	                        // wanted.
	                        resolve(cursor.key);
	                    } else {
	                        if (!advanced) {
	                            // Otherwise, ask the cursor to skip ahead n
	                            // records.
	                            advanced = true;
	                            cursor.advance(n);
	                        } else {
	                            // When we get here, we've got the nth key.
	                            resolve(cursor.key);
	                        }
	                    }
	                };

	                req.onerror = function () {
	                    reject(req.error);
	                };
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function keys(callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly').objectStore(dbInfo.storeName);

	                var req = store.openCursor();
	                var keys = [];

	                req.onsuccess = function () {
	                    var cursor = req.result;

	                    if (!cursor) {
	                        resolve(keys);
	                        return;
	                    }

	                    keys.push(cursor.key);
	                    cursor['continue']();
	                };

	                req.onerror = function () {
	                    reject(req.error);
	                };
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function executeCallback(promise, callback) {
	        if (callback) {
	            promise.then(function (result) {
	                callback(null, result);
	            }, function (error) {
	                callback(error);
	            });
	        }
	    }

	    var asyncStorage = {
	        _driver: 'asyncStorage',
	        _initStorage: _initStorage,
	        iterate: iterate,
	        getItem: getItem,
	        setItem: setItem,
	        removeItem: removeItem,
	        clear: clear,
	        length: length,
	        key: key,
	        keys: keys
	    };

	    return asyncStorage;
	})(typeof window !== 'undefined' ? window : self);
	exports['default'] = asyncStorage;
	module.exports = exports['default'];

/***/ },
/* 2 */
/***/ function(module, exports, __webpack_require__) {

	// If IndexedDB isn't available, we'll fall back to localStorage.
	// Note that this will have considerable performance and storage
	// side-effects (all data will be serialized on save and only data that
	// can be converted to a string via `JSON.stringify()` will be saved).
	'use strict';

	exports.__esModule = true;
	var localStorageWrapper = (function (globalObject) {
	    'use strict';

	    var localStorage = null;

	    // If the app is running inside a Google Chrome packaged webapp, or some
	    // other context where localStorage isn't available, we don't use
	    // localStorage. This feature detection is preferred over the old
	    // `if (window.chrome && window.chrome.runtime)` code.
	    // See: https://github.com/mozilla/localForage/issues/68
	    try {
	        // If localStorage isn't available, we get outta here!
	        // This should be inside a try catch
	        if (!globalObject.localStorage || !('setItem' in globalObject.localStorage)) {
	            return;
	        }
	        // Initialize localStorage and create a variable to use throughout
	        // the code.
	        localStorage = globalObject.localStorage;
	    } catch (e) {
	        return;
	    }

	    // Config the localStorage backend, using options set in the config.
	    function _initStorage(options) {
	        var self = this;
	        var dbInfo = {};
	        if (options) {
	            for (var i in options) {
	                dbInfo[i] = options[i];
	            }
	        }

	        dbInfo.keyPrefix = dbInfo.name + '/';

	        if (dbInfo.storeName !== self._defaultConfig.storeName) {
	            dbInfo.keyPrefix += dbInfo.storeName + '/';
	        }

	        self._dbInfo = dbInfo;

	        return new Promise(function (resolve, reject) {
	            resolve(__webpack_require__(3));
	        }).then(function (lib) {
	            dbInfo.serializer = lib;
	            return Promise.resolve();
	        });
	    }

	    // Remove all keys from the datastore, effectively destroying all data in
	    // the app's key/value store!
	    function clear(callback) {
	        var self = this;
	        var promise = self.ready().then(function () {
	            var keyPrefix = self._dbInfo.keyPrefix;

	            for (var i = localStorage.length - 1; i >= 0; i--) {
	                var key = localStorage.key(i);

	                if (key.indexOf(keyPrefix) === 0) {
	                    localStorage.removeItem(key);
	                }
	            }
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Retrieve an item from the store. Unlike the original async_storage
	    // library in Gaia, we don't modify return values at all. If a key's value
	    // is `undefined`, we pass that value to the callback function.
	    function getItem(key, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = self.ready().then(function () {
	            var dbInfo = self._dbInfo;
	            var result = localStorage.getItem(dbInfo.keyPrefix + key);

	            // If a result was found, parse it from the serialized
	            // string into a JS object. If result isn't truthy, the key
	            // is likely undefined and we'll pass it straight to the
	            // callback.
	            if (result) {
	                result = dbInfo.serializer.deserialize(result);
	            }

	            return result;
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Iterate over all items in the store.
	    function iterate(iterator, callback) {
	        var self = this;

	        var promise = self.ready().then(function () {
	            var dbInfo = self._dbInfo;
	            var keyPrefix = dbInfo.keyPrefix;
	            var keyPrefixLength = keyPrefix.length;
	            var length = localStorage.length;

	            // We use a dedicated iterator instead of the `i` variable below
	            // so other keys we fetch in localStorage aren't counted in
	            // the `iterationNumber` argument passed to the `iterate()`
	            // callback.
	            //
	            // See: github.com/mozilla/localForage/pull/435#discussion_r38061530
	            var iterationNumber = 1;

	            for (var i = 0; i < length; i++) {
	                var key = localStorage.key(i);
	                if (key.indexOf(keyPrefix) !== 0) {
	                    continue;
	                }
	                var value = localStorage.getItem(key);

	                // If a result was found, parse it from the serialized
	                // string into a JS object. If result isn't truthy, the
	                // key is likely undefined and we'll pass it straight
	                // to the iterator.
	                if (value) {
	                    value = dbInfo.serializer.deserialize(value);
	                }

	                value = iterator(value, key.substring(keyPrefixLength), iterationNumber++);

	                if (value !== void 0) {
	                    return value;
	                }
	            }
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Same as localStorage's key() method, except takes a callback.
	    function key(n, callback) {
	        var self = this;
	        var promise = self.ready().then(function () {
	            var dbInfo = self._dbInfo;
	            var result;
	            try {
	                result = localStorage.key(n);
	            } catch (error) {
	                result = null;
	            }

	            // Remove the prefix from the key, if a key is found.
	            if (result) {
	                result = result.substring(dbInfo.keyPrefix.length);
	            }

	            return result;
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function keys(callback) {
	        var self = this;
	        var promise = self.ready().then(function () {
	            var dbInfo = self._dbInfo;
	            var length = localStorage.length;
	            var keys = [];

	            for (var i = 0; i < length; i++) {
	                if (localStorage.key(i).indexOf(dbInfo.keyPrefix) === 0) {
	                    keys.push(localStorage.key(i).substring(dbInfo.keyPrefix.length));
	                }
	            }

	            return keys;
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Supply the number of keys in the datastore to the callback function.
	    function length(callback) {
	        var self = this;
	        var promise = self.keys().then(function (keys) {
	            return keys.length;
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Remove an item from the store, nice and simple.
	    function removeItem(key, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = self.ready().then(function () {
	            var dbInfo = self._dbInfo;
	            localStorage.removeItem(dbInfo.keyPrefix + key);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Set a key's value and run an optional callback once the value is set.
	    // Unlike Gaia's implementation, the callback function is passed the value,
	    // in case you want to operate on that value only after you're sure it
	    // saved, or something like that.
	    function setItem(key, value, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = self.ready().then(function () {
	            // Convert undefined values to null.
	            // https://github.com/mozilla/localForage/pull/42
	            if (value === undefined) {
	                value = null;
	            }

	            // Save the original value to pass to the callback.
	            var originalValue = value;

	            return new Promise(function (resolve, reject) {
	                var dbInfo = self._dbInfo;
	                dbInfo.serializer.serialize(value, function (value, error) {
	                    if (error) {
	                        reject(error);
	                    } else {
	                        try {
	                            localStorage.setItem(dbInfo.keyPrefix + key, value);
	                            resolve(originalValue);
	                        } catch (e) {
	                            // localStorage capacity exceeded.
	                            // TODO: Make this a specific error/event.
	                            if (e.name === 'QuotaExceededError' || e.name === 'NS_ERROR_DOM_QUOTA_REACHED') {
	                                reject(e);
	                            }
	                            reject(e);
	                        }
	                    }
	                });
	            });
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function executeCallback(promise, callback) {
	        if (callback) {
	            promise.then(function (result) {
	                callback(null, result);
	            }, function (error) {
	                callback(error);
	            });
	        }
	    }

	    var localStorageWrapper = {
	        _driver: 'localStorageWrapper',
	        _initStorage: _initStorage,
	        // Default API, from Gaia/localStorage.
	        iterate: iterate,
	        getItem: getItem,
	        setItem: setItem,
	        removeItem: removeItem,
	        clear: clear,
	        length: length,
	        key: key,
	        keys: keys
	    };

	    return localStorageWrapper;
	})(typeof window !== 'undefined' ? window : self);
	exports['default'] = localStorageWrapper;
	module.exports = exports['default'];

/***/ },
/* 3 */
/***/ function(module, exports) {

	'use strict';

	exports.__esModule = true;
	var localforageSerializer = (function (globalObject) {
	    'use strict';

	    // Sadly, the best way to save binary data in WebSQL/localStorage is serializing
	    // it to Base64, so this is how we store it to prevent very strange errors with less
	    // verbose ways of binary <-> string data storage.
	    var BASE_CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';

	    var BLOB_TYPE_PREFIX = '~~local_forage_type~';
	    var BLOB_TYPE_PREFIX_REGEX = /^~~local_forage_type~([^~]+)~/;

	    var SERIALIZED_MARKER = '__lfsc__:';
	    var SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER.length;

	    // OMG the serializations!
	    var TYPE_ARRAYBUFFER = 'arbf';
	    var TYPE_BLOB = 'blob';
	    var TYPE_INT8ARRAY = 'si08';
	    var TYPE_UINT8ARRAY = 'ui08';
	    var TYPE_UINT8CLAMPEDARRAY = 'uic8';
	    var TYPE_INT16ARRAY = 'si16';
	    var TYPE_INT32ARRAY = 'si32';
	    var TYPE_UINT16ARRAY = 'ur16';
	    var TYPE_UINT32ARRAY = 'ui32';
	    var TYPE_FLOAT32ARRAY = 'fl32';
	    var TYPE_FLOAT64ARRAY = 'fl64';
	    var TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH + TYPE_ARRAYBUFFER.length;

	    // Abstracts constructing a Blob object, so it also works in older
	    // browsers that don't support the native Blob constructor. (i.e.
	    // old QtWebKit versions, at least).
	    function _createBlob(parts, properties) {
	        parts = parts || [];
	        properties = properties || {};

	        try {
	            return new Blob(parts, properties);
	        } catch (err) {
	            if (err.name !== 'TypeError') {
	                throw err;
	            }

	            var BlobBuilder = globalObject.BlobBuilder || globalObject.MSBlobBuilder || globalObject.MozBlobBuilder || globalObject.WebKitBlobBuilder;

	            var builder = new BlobBuilder();
	            for (var i = 0; i < parts.length; i += 1) {
	                builder.append(parts[i]);
	            }

	            return builder.getBlob(properties.type);
	        }
	    }

	    // Serialize a value, afterwards executing a callback (which usually
	    // instructs the `setItem()` callback/promise to be executed). This is how
	    // we store binary data with localStorage.
	    function serialize(value, callback) {
	        var valueString = '';
	        if (value) {
	            valueString = value.toString();
	        }

	        // Cannot use `value instanceof ArrayBuffer` or such here, as these
	        // checks fail when running the tests using casper.js...
	        //
	        // TODO: See why those tests fail and use a better solution.
	        if (value && (value.toString() === '[object ArrayBuffer]' || value.buffer && value.buffer.toString() === '[object ArrayBuffer]')) {
	            // Convert binary arrays to a string and prefix the string with
	            // a special marker.
	            var buffer;
	            var marker = SERIALIZED_MARKER;

	            if (value instanceof ArrayBuffer) {
	                buffer = value;
	                marker += TYPE_ARRAYBUFFER;
	            } else {
	                buffer = value.buffer;

	                if (valueString === '[object Int8Array]') {
	                    marker += TYPE_INT8ARRAY;
	                } else if (valueString === '[object Uint8Array]') {
	                    marker += TYPE_UINT8ARRAY;
	                } else if (valueString === '[object Uint8ClampedArray]') {
	                    marker += TYPE_UINT8CLAMPEDARRAY;
	                } else if (valueString === '[object Int16Array]') {
	                    marker += TYPE_INT16ARRAY;
	                } else if (valueString === '[object Uint16Array]') {
	                    marker += TYPE_UINT16ARRAY;
	                } else if (valueString === '[object Int32Array]') {
	                    marker += TYPE_INT32ARRAY;
	                } else if (valueString === '[object Uint32Array]') {
	                    marker += TYPE_UINT32ARRAY;
	                } else if (valueString === '[object Float32Array]') {
	                    marker += TYPE_FLOAT32ARRAY;
	                } else if (valueString === '[object Float64Array]') {
	                    marker += TYPE_FLOAT64ARRAY;
	                } else {
	                    callback(new Error('Failed to get type for BinaryArray'));
	                }
	            }

	            callback(marker + bufferToString(buffer));
	        } else if (valueString === '[object Blob]') {
	            // Conver the blob to a binaryArray and then to a string.
	            var fileReader = new FileReader();

	            fileReader.onload = function () {
	                // Backwards-compatible prefix for the blob type.
	                var str = BLOB_TYPE_PREFIX + value.type + '~' + bufferToString(this.result);

	                callback(SERIALIZED_MARKER + TYPE_BLOB + str);
	            };

	            fileReader.readAsArrayBuffer(value);
	        } else {
	            try {
	                callback(JSON.stringify(value));
	            } catch (e) {
	                console.error("Couldn't convert value into a JSON string: ", value);

	                callback(null, e);
	            }
	        }
	    }

	    // Deserialize data we've inserted into a value column/field. We place
	    // special markers into our strings to mark them as encoded; this isn't
	    // as nice as a meta field, but it's the only sane thing we can do whilst
	    // keeping localStorage support intact.
	    //
	    // Oftentimes this will just deserialize JSON content, but if we have a
	    // special marker (SERIALIZED_MARKER, defined above), we will extract
	    // some kind of arraybuffer/binary data/typed array out of the string.
	    function deserialize(value) {
	        // If we haven't marked this string as being specially serialized (i.e.
	        // something other than serialized JSON), we can just return it and be
	        // done with it.
	        if (value.substring(0, SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {
	            return JSON.parse(value);
	        }

	        // The following code deals with deserializing some kind of Blob or
	        // TypedArray. First we separate out the type of data we're dealing
	        // with from the data itself.
	        var serializedString = value.substring(TYPE_SERIALIZED_MARKER_LENGTH);
	        var type = value.substring(SERIALIZED_MARKER_LENGTH, TYPE_SERIALIZED_MARKER_LENGTH);

	        var blobType;
	        // Backwards-compatible blob type serialization strategy.
	        // DBs created with older versions of localForage will simply not have the blob type.
	        if (type === TYPE_BLOB && BLOB_TYPE_PREFIX_REGEX.test(serializedString)) {
	            var matcher = serializedString.match(BLOB_TYPE_PREFIX_REGEX);
	            blobType = matcher[1];
	            serializedString = serializedString.substring(matcher[0].length);
	        }
	        var buffer = stringToBuffer(serializedString);

	        // Return the right type based on the code/type set during
	        // serialization.
	        switch (type) {
	            case TYPE_ARRAYBUFFER:
	                return buffer;
	            case TYPE_BLOB:
	                return _createBlob([buffer], { type: blobType });
	            case TYPE_INT8ARRAY:
	                return new Int8Array(buffer);
	            case TYPE_UINT8ARRAY:
	                return new Uint8Array(buffer);
	            case TYPE_UINT8CLAMPEDARRAY:
	                return new Uint8ClampedArray(buffer);
	            case TYPE_INT16ARRAY:
	                return new Int16Array(buffer);
	            case TYPE_UINT16ARRAY:
	                return new Uint16Array(buffer);
	            case TYPE_INT32ARRAY:
	                return new Int32Array(buffer);
	            case TYPE_UINT32ARRAY:
	                return new Uint32Array(buffer);
	            case TYPE_FLOAT32ARRAY:
	                return new Float32Array(buffer);
	            case TYPE_FLOAT64ARRAY:
	                return new Float64Array(buffer);
	            default:
	                throw new Error('Unkown type: ' + type);
	        }
	    }

	    function stringToBuffer(serializedString) {
	        // Fill the string into a ArrayBuffer.
	        var bufferLength = serializedString.length * 0.75;
	        var len = serializedString.length;
	        var i;
	        var p = 0;
	        var encoded1, encoded2, encoded3, encoded4;

	        if (serializedString[serializedString.length - 1] === '=') {
	            bufferLength--;
	            if (serializedString[serializedString.length - 2] === '=') {
	                bufferLength--;
	            }
	        }

	        var buffer = new ArrayBuffer(bufferLength);
	        var bytes = new Uint8Array(buffer);

	        for (i = 0; i < len; i += 4) {
	            encoded1 = BASE_CHARS.indexOf(serializedString[i]);
	            encoded2 = BASE_CHARS.indexOf(serializedString[i + 1]);
	            encoded3 = BASE_CHARS.indexOf(serializedString[i + 2]);
	            encoded4 = BASE_CHARS.indexOf(serializedString[i + 3]);

	            /*jslint bitwise: true */
	            bytes[p++] = encoded1 << 2 | encoded2 >> 4;
	            bytes[p++] = (encoded2 & 15) << 4 | encoded3 >> 2;
	            bytes[p++] = (encoded3 & 3) << 6 | encoded4 & 63;
	        }
	        return buffer;
	    }

	    // Converts a buffer to a string to store, serialized, in the backend
	    // storage library.
	    function bufferToString(buffer) {
	        // base64-arraybuffer
	        var bytes = new Uint8Array(buffer);
	        var base64String = '';
	        var i;

	        for (i = 0; i < bytes.length; i += 3) {
	            /*jslint bitwise: true */
	            base64String += BASE_CHARS[bytes[i] >> 2];
	            base64String += BASE_CHARS[(bytes[i] & 3) << 4 | bytes[i + 1] >> 4];
	            base64String += BASE_CHARS[(bytes[i + 1] & 15) << 2 | bytes[i + 2] >> 6];
	            base64String += BASE_CHARS[bytes[i + 2] & 63];
	        }

	        if (bytes.length % 3 === 2) {
	            base64String = base64String.substring(0, base64String.length - 1) + '=';
	        } else if (bytes.length % 3 === 1) {
	            base64String = base64String.substring(0, base64String.length - 2) + '==';
	        }

	        return base64String;
	    }

	    var localforageSerializer = {
	        serialize: serialize,
	        deserialize: deserialize,
	        stringToBuffer: stringToBuffer,
	        bufferToString: bufferToString
	    };

	    return localforageSerializer;
	})(typeof window !== 'undefined' ? window : self);
	exports['default'] = localforageSerializer;
	module.exports = exports['default'];

/***/ },
/* 4 */
/***/ function(module, exports, __webpack_require__) {

	/*
	 * Includes code from:
	 *
	 * base64-arraybuffer
	 * https://github.com/niklasvh/base64-arraybuffer
	 *
	 * Copyright (c) 2012 Niklas von Hertzen
	 * Licensed under the MIT license.
	 */
	'use strict';

	exports.__esModule = true;
	var webSQLStorage = (function (globalObject) {
	    'use strict';

	    var openDatabase = globalObject.openDatabase;

	    // If WebSQL methods aren't available, we can stop now.
	    if (!openDatabase) {
	        return;
	    }

	    // Open the WebSQL database (automatically creates one if one didn't
	    // previously exist), using any options set in the config.
	    function _initStorage(options) {
	        var self = this;
	        var dbInfo = {
	            db: null
	        };

	        if (options) {
	            for (var i in options) {
	                dbInfo[i] = typeof options[i] !== 'string' ? options[i].toString() : options[i];
	            }
	        }

	        var dbInfoPromise = new Promise(function (resolve, reject) {
	            // Open the database; the openDatabase API will automatically
	            // create it for us if it doesn't exist.
	            try {
	                dbInfo.db = openDatabase(dbInfo.name, String(dbInfo.version), dbInfo.description, dbInfo.size);
	            } catch (e) {
	                return reject(e);
	            }

	            // Create our key/value table if it doesn't exist.
	            dbInfo.db.transaction(function (t) {
	                t.executeSql('CREATE TABLE IF NOT EXISTS ' + dbInfo.storeName + ' (id INTEGER PRIMARY KEY, key unique, value)', [], function () {
	                    self._dbInfo = dbInfo;
	                    resolve();
	                }, function (t, error) {
	                    reject(error);
	                });
	            });
	        });

	        return new Promise(function (resolve, reject) {
	            resolve(__webpack_require__(3));
	        }).then(function (lib) {
	            dbInfo.serializer = lib;
	            return dbInfoPromise;
	        });
	    }

	    function getItem(key, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                dbInfo.db.transaction(function (t) {
	                    t.executeSql('SELECT * FROM ' + dbInfo.storeName + ' WHERE key = ? LIMIT 1', [key], function (t, results) {
	                        var result = results.rows.length ? results.rows.item(0).value : null;

	                        // Check to see if this is serialized content we need to
	                        // unpack.
	                        if (result) {
	                            result = dbInfo.serializer.deserialize(result);
	                        }

	                        resolve(result);
	                    }, function (t, error) {

	                        reject(error);
	                    });
	                });
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function iterate(iterator, callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;

	                dbInfo.db.transaction(function (t) {
	                    t.executeSql('SELECT * FROM ' + dbInfo.storeName, [], function (t, results) {
	                        var rows = results.rows;
	                        var length = rows.length;

	                        for (var i = 0; i < length; i++) {
	                            var item = rows.item(i);
	                            var result = item.value;

	                            // Check to see if this is serialized content
	                            // we need to unpack.
	                            if (result) {
	                                result = dbInfo.serializer.deserialize(result);
	                            }

	                            result = iterator(result, item.key, i + 1);

	                            // void(0) prevents problems with redefinition
	                            // of `undefined`.
	                            if (result !== void 0) {
	                                resolve(result);
	                                return;
	                            }
	                        }

	                        resolve();
	                    }, function (t, error) {
	                        reject(error);
	                    });
	                });
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function setItem(key, value, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                // The localStorage API doesn't return undefined values in an
	                // "expected" way, so undefined is always cast to null in all
	                // drivers. See: https://github.com/mozilla/localForage/pull/42
	                if (value === undefined) {
	                    value = null;
	                }

	                // Save the original value to pass to the callback.
	                var originalValue = value;

	                var dbInfo = self._dbInfo;
	                dbInfo.serializer.serialize(value, function (value, error) {
	                    if (error) {
	                        reject(error);
	                    } else {
	                        dbInfo.db.transaction(function (t) {
	                            t.executeSql('INSERT OR REPLACE INTO ' + dbInfo.storeName + ' (key, value) VALUES (?, ?)', [key, value], function () {
	                                resolve(originalValue);
	                            }, function (t, error) {
	                                reject(error);
	                            });
	                        }, function (sqlError) {
	                            // The transaction failed; check
	                            // to see if it's a quota error.
	                            if (sqlError.code === sqlError.QUOTA_ERR) {
	                                // We reject the callback outright for now, but
	                                // it's worth trying to re-run the transaction.
	                                // Even if the user accepts the prompt to use
	                                // more storage on Safari, this error will
	                                // be called.
	                                //
	                                // TODO: Try to re-run the transaction.
	                                reject(sqlError);
	                            }
	                        });
	                    }
	                });
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function removeItem(key, callback) {
	        var self = this;

	        // Cast the key to a string, as that's all we can set as a key.
	        if (typeof key !== 'string') {
	            globalObject.console.warn(key + ' used as a key, but it is not a string.');
	            key = String(key);
	        }

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                dbInfo.db.transaction(function (t) {
	                    t.executeSql('DELETE FROM ' + dbInfo.storeName + ' WHERE key = ?', [key], function () {
	                        resolve();
	                    }, function (t, error) {

	                        reject(error);
	                    });
	                });
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Deletes every item in the table.
	    // TODO: Find out if this resets the AUTO_INCREMENT number.
	    function clear(callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                dbInfo.db.transaction(function (t) {
	                    t.executeSql('DELETE FROM ' + dbInfo.storeName, [], function () {
	                        resolve();
	                    }, function (t, error) {
	                        reject(error);
	                    });
	                });
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Does a simple `COUNT(key)` to get the number of items stored in
	    // localForage.
	    function length(callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                dbInfo.db.transaction(function (t) {
	                    // Ahhh, SQL makes this one soooooo easy.
	                    t.executeSql('SELECT COUNT(key) as c FROM ' + dbInfo.storeName, [], function (t, results) {
	                        var result = results.rows.item(0).c;

	                        resolve(result);
	                    }, function (t, error) {

	                        reject(error);
	                    });
	                });
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    // Return the key located at key index X; essentially gets the key from a
	    // `WHERE id = ?`. This is the most efficient way I can think to implement
	    // this rarely-used (in my experience) part of the API, but it can seem
	    // inconsistent, because we do `INSERT OR REPLACE INTO` on `setItem()`, so
	    // the ID of each key will change every time it's updated. Perhaps a stored
	    // procedure for the `setItem()` SQL would solve this problem?
	    // TODO: Don't change ID on `setItem()`.
	    function key(n, callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                dbInfo.db.transaction(function (t) {
	                    t.executeSql('SELECT key FROM ' + dbInfo.storeName + ' WHERE id = ? LIMIT 1', [n + 1], function (t, results) {
	                        var result = results.rows.length ? results.rows.item(0).key : null;
	                        resolve(result);
	                    }, function (t, error) {
	                        reject(error);
	                    });
	                });
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function keys(callback) {
	        var self = this;

	        var promise = new Promise(function (resolve, reject) {
	            self.ready().then(function () {
	                var dbInfo = self._dbInfo;
	                dbInfo.db.transaction(function (t) {
	                    t.executeSql('SELECT key FROM ' + dbInfo.storeName, [], function (t, results) {
	                        var keys = [];

	                        for (var i = 0; i < results.rows.length; i++) {
	                            keys.push(results.rows.item(i).key);
	                        }

	                        resolve(keys);
	                    }, function (t, error) {

	                        reject(error);
	                    });
	                });
	            })['catch'](reject);
	        });

	        executeCallback(promise, callback);
	        return promise;
	    }

	    function executeCallback(promise, callback) {
	        if (callback) {
	            promise.then(function (result) {
	                callback(null, result);
	            }, function (error) {
	                callback(error);
	            });
	        }
	    }

	    var webSQLStorage = {
	        _driver: 'webSQLStorage',
	        _initStorage: _initStorage,
	        iterate: iterate,
	        getItem: getItem,
	        setItem: setItem,
	        removeItem: removeItem,
	        clear: clear,
	        length: length,
	        key: key,
	        keys: keys
	    };

	    return webSQLStorage;
	})(typeof window !== 'undefined' ? window : self);
	exports['default'] = webSQLStorage;
	module.exports = exports['default'];

/***/ }
/******/ ])
});
;