automatic build

1 files changed, 1600 insertions, 0 deletions

diff --git a/dist/workbox-v3.2.0/workbox-core.dev.js b/dist/workbox-v3.2.0/workbox-core.dev.js
new file mode 100644
index 0000000..5387458
--- /dev/null
+++ b/dist/workbox-v3.2.0/workbox-core.dev.js
@@ -0,0 +1,1600 @@
+/* eslint-disable */
+// This is extracted from the Babel runtime (original source: https://github.com/babel/babel/blob/9e0f5235b1ca5167c368a576ad7c5af62d20b0e3/packages/babel-helpers/src/helpers.js#L240).
+// As part of the Rollup bundling process, it's injected once into workbox-core
+// and reused throughout all of the other modules, avoiding code duplication.
+// See https://github.com/GoogleChrome/workbox/pull/1048#issuecomment-344698046
+// for further background.
+self.babelHelpers = {
+  asyncToGenerator: function(fn) {
+    return function() {
+      var gen = fn.apply(this, arguments);
+      return new Promise(function(resolve, reject) {
+        function step(key, arg) {
+          try {
+            var info = gen[key](arg);
+            var value = info.value;
+          } catch (error) {
+            reject(error);
+            return;
+          }
+
+          if (info.done) {
+            resolve(value);
+          } else {
+            return Promise.resolve(value).then(function(value) {
+              step('next', value);
+            }, function(err) {
+              step('throw', err);
+            });
+          }
+        }
+
+        return step('next');
+      });
+    };
+  },
+};
+
+this.workbox = this.workbox || {};
+this.workbox.core = (function () {
+'use strict';
+
+try {
+  self.workbox.v['workbox:core:3.2.0'] = 1;
+} catch (e) {} // eslint-disable-line
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/**
+ * The available log levels in Workbox: debug, log, warn, error and silent.
+ *
+ * @property {int} debug Prints all logs from Workbox. Useful for debugging.
+ * @property {int} log Prints console log, warn, error and groups. Default for
+ * debug builds.
+ * @property {int} warn Prints console warn, error and groups. Default for
+ * non-debug builds.
+ * @property {int} error Print console error and groups.
+ * @property {int} silent Force no logging from Workbox.
+ *
+ * @alias workbox.core.LOG_LEVELS
+ */
+
+var LOG_LEVELS = {
+  debug: 0,
+  log: 1,
+  warn: 2,
+  error: 3,
+  silent: 4
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+var messages = {
+  'invalid-value': ({ paramName, validValueDescription, value }) => {
+    if (!paramName || !validValueDescription) {
+      throw new Error(`Unexpected input to 'invalid-value' error.`);
+    }
+    return `The '${paramName}' parameter was given a value with an ` + `unexpected value. ${validValueDescription} Received a value of ` + `${JSON.stringify(value)}.`;
+  },
+
+  'not-in-sw': ({ moduleName }) => {
+    if (!moduleName) {
+      throw new Error(`Unexpected input to 'not-in-sw' error.`);
+    }
+    return `The '${moduleName}' must be used in a service worker.`;
+  },
+
+  'not-an-array': ({ moduleName, className, funcName, paramName }) => {
+    if (!moduleName || !className || !funcName || !paramName) {
+      throw new Error(`Unexpected input to 'not-an-array' error.`);
+    }
+    return `The parameter '${paramName}' passed into ` + `'${moduleName}.${className}.${funcName}()' must be an array.`;
+  },
+
+  'incorrect-type': ({ expectedType, paramName, moduleName, className,
+    funcName }) => {
+    if (!expectedType || !paramName || !moduleName || !funcName) {
+      throw new Error(`Unexpected input to 'incorrect-type' error.`);
+    }
+    return `The parameter '${paramName}' passed into ` + `'${moduleName}.${className ? className + '.' : ''}` + `${funcName}()' must be of type ${expectedType}.`;
+  },
+
+  'incorrect-class': ({ expectedClass, paramName, moduleName, className,
+    funcName, isReturnValueProblem }) => {
+    if (!expectedClass || !moduleName || !funcName) {
+      throw new Error(`Unexpected input to 'incorrect-class' error.`);
+    }
+
+    if (isReturnValueProblem) {
+      return `The return value from ` + `'${moduleName}.${className ? className + '.' : ''}${funcName}()' ` + `must be an instance of class ${expectedClass.name}.`;
+    }
+
+    return `The parameter '${paramName}' passed into ` + `'${moduleName}.${className ? className + '.' : ''}${funcName}()' ` + `must be an instance of class ${expectedClass.name}.`;
+  },
+
+  'missing-a-method': ({ expectedMethod, paramName, moduleName, className,
+    funcName }) => {
+    if (!expectedMethod || !paramName || !moduleName || !className || !funcName) {
+      throw new Error(`Unexpected input to 'missing-a-method' error.`);
+    }
+    return `${moduleName}.${className}.${funcName}() expected the ` + `'${paramName}' parameter to expose a '${expectedMethod}' method.`;
+  },
+
+  'add-to-cache-list-unexpected-type': ({ entry }) => {
+    return `An unexpected entry was passed to ` + `'workbox-precaching.PrecacheController.addToCacheList()' The entry ` + `'${JSON.stringify(entry)}' isn't supported. You must supply an array of ` + `strings with one or more characters, objects with a url property or ` + `Request objects.`;
+  },
+
+  'add-to-cache-list-conflicting-entries': ({ firstEntry, secondEntry }) => {
+    if (!firstEntry || !secondEntry) {
+      throw new Error(`Unexpected input to ` + `'add-to-cache-list-duplicate-entries' error.`);
+    }
+
+    return `Two of the entries passed to ` + `'workbox-precaching.PrecacheController.addToCacheList()' had matching ` + `URLs but different revision details. This means workbox-precaching ` + `is unable to determine cache the asset correctly. Please remove one ` + `of the entries.`;
+  },
+
+  'plugin-error-request-will-fetch': ({ thrownError }) => {
+    if (!thrownError) {
+      throw new Error(`Unexpected input to ` + `'plugin-error-request-will-fetch', error.`);
+    }
+
+    return `An error was thrown by a plugins 'requestWillFetch()' method. ` + `The thrown error message was: '${thrownError.message}'.`;
+  },
+
+  'invalid-cache-name': ({ cacheNameId, value }) => {
+    if (!cacheNameId) {
+      throw new Error(`Expected a 'cacheNameId' for error 'invalid-cache-name'`);
+    }
+
+    return `You must provide a name containing at least one character for ` + `setCacheDeatils({${cacheNameId}: '...'}). Received a value of ` + `'${JSON.stringify(value)}'`;
+  },
+
+  'unregister-route-but-not-found-with-method': ({ method }) => {
+    if (!method) {
+      throw new Error(`Unexpected input to ` + `'unregister-route-but-not-found-with-method' error.`);
+    }
+
+    return `The route you're trying to unregister was not  previously ` + `registered for the method type '${method}'.`;
+  },
+
+  'unregister-route-route-not-registered': () => {
+    return `The route you're trying to unregister was not previously ` + `registered.`;
+  },
+
+  'queue-replay-failed': ({ name, count }) => {
+    return `${count} requests failed, while trying to replay Queue: ${name}.`;
+  },
+
+  'duplicate-queue-name': ({ name }) => {
+    return `The Queue name '${name}' is already being used. ` + `All instances of backgroundSync.Queue must be given unique names.`;
+  },
+
+  'expired-test-without-max-age': ({ methodName, paramName }) => {
+    return `The '${methodName}()' method can only be used when the ` + `'${paramName}' is used in the constructor.`;
+  },
+
+  'unsupported-route-type': ({ moduleName, className, funcName, paramName }) => {
+    return `The supplied '${paramName}' parameter was an unsupported type. ` + `Please check the docs for ${moduleName}.${className}.${funcName} for ` + `valid input types.`;
+  },
+
+  'not-array-of-class': ({ value, expectedClass,
+    moduleName, className, funcName, paramName }) => {
+    return `The supplied '${paramName}' parameter must be an array of ` + `'${expectedClass}' objects. Received '${JSON.stringify(value)},'. ` + `Please check the call to ${moduleName}.${className}.${funcName}() ` + `to fix the issue.`;
+  },
+
+  'max-entries-or-age-required': ({ moduleName, className, funcName }) => {
+    return `You must define either config.maxEntries or config.maxAgeSeconds` + `in ${moduleName}.${className}.${funcName}`;
+  },
+
+  'statuses-or-headers-required': ({ moduleName, className, funcName }) => {
+    return `You must define either config.statuses or config.headers` + `in ${moduleName}.${className}.${funcName}`;
+  },
+
+  'invalid-string': ({ moduleName, className, funcName, paramName }) => {
+    if (!paramName || !moduleName || !className || !funcName) {
+      throw new Error(`Unexpected input to 'invalid-string' error.`);
+    }
+    return `When using strings, the '${paramName}' parameter must start with ` + `'http' (for cross-origin matches) or '/' (for same-origin matches). ` + `Please see the docs for ${moduleName}.${className}.${funcName}() for ` + `more info.`;
+  },
+  'channel-name-required': () => {
+    return `You must provide a channelName to construct a ` + `BroadcastCacheUpdate instance.`;
+  },
+  'invalid-responses-are-same-args': () => {
+    return `The arguments passed into responsesAreSame() appear to be ` + `invalid. Please ensure valid Responses are used.`;
+  },
+  'expire-custom-caches-only': () => {
+    return `You must provide a 'cacheName' property when using the ` + `expiration plugin with a runtime caching strategy.`;
+  },
+  'unit-must-be-bytes': ({ normalizedRangeHeader }) => {
+    if (!normalizedRangeHeader) {
+      throw new Error(`Unexpected input to 'unit-must-be-bytes' error.`);
+    }
+    return `The 'unit' portion of the Range header must be set to 'bytes'. ` + `The Range header provided was "${normalizedRangeHeader}"`;
+  },
+  'single-range-only': ({ normalizedRangeHeader }) => {
+    if (!normalizedRangeHeader) {
+      throw new Error(`Unexpected input to 'single-range-only' error.`);
+    }
+    return `Multiple ranges are not supported. Please use a  single start ` + `value, and optional end value. The Range header provided was ` + `"${normalizedRangeHeader}"`;
+  },
+  'invalid-range-values': ({ normalizedRangeHeader }) => {
+    if (!normalizedRangeHeader) {
+      throw new Error(`Unexpected input to 'invalid-range-values' error.`);
+    }
+    return `The Range header is missing both start and end values. At least ` + `one of those values is needed. The Range header provided was ` + `"${normalizedRangeHeader}"`;
+  },
+  'no-range-header': () => {
+    return `No Range header was found in the Request provided.`;
+  },
+  'range-not-satisfiable': ({ size, start, end }) => {
+    return `The start (${start}) and end (${end}) values in the Range are ` + `not satisfiable by the cached response, which is ${size} bytes.`;
+  },
+  'attempt-to-cache-non-get-request': ({ url, method }) => {
+    return `Unable to cache '${url}' because it is a '${method}' request and ` + `only 'GET' requests can be cached.`;
+  },
+  'cache-put-with-no-response': ({ url }) => {
+    return `There was an attempt to cache '${url}' but the response was not ` + `defined.`;
+  }
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+const generatorFunction = (code, ...args) => {
+  const message = messages[code];
+  if (!message) {
+    throw new Error(`Unable to find message for code '${code}'.`);
+  }
+
+  return message(...args);
+};
+
+const exportedValue = generatorFunction;
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/**
+ * Workbox errors should be thrown with this class.
+ * This allows use to ensure the type easily in tests,
+ * helps developers identify errors from workbox
+ * easily and allows use to optimise error
+ * messages correctly.
+ *
+ * @private
+ */
+class WorkboxError extends Error {
+  /**
+   *
+   * @param {string} errorCode The error code that
+   * identifies this particular error.
+   * @param {Object=} details Any relevant arguments
+   * that will help developers identify issues should
+   * be added as a key on the context object.
+   */
+  constructor(errorCode, details) {
+    let message = exportedValue(errorCode, details);
+
+    super(message);
+
+    this.name = errorCode;
+    this.details = details;
+  }
+}
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+const _cacheNameDetails = {
+  prefix: 'workbox',
+  suffix: self.registration.scope,
+  googleAnalytics: 'googleAnalytics',
+  precache: 'precache',
+  runtime: 'runtime'
+};
+
+const _createCacheName = cacheName => {
+  return [_cacheNameDetails.prefix, cacheName, _cacheNameDetails.suffix].filter(value => value.length > 0).join('-');
+};
+
+const cacheNames = {
+  updateDetails: details => {
+    Object.keys(_cacheNameDetails).forEach(key => {
+      if (typeof details[key] !== 'undefined') {
+        _cacheNameDetails[key] = details[key];
+      }
+    });
+  },
+  getGoogleAnalyticsName: userCacheName => {
+    return userCacheName || _createCacheName(_cacheNameDetails.googleAnalytics);
+  },
+  getPrecacheName: userCacheName => {
+    return userCacheName || _createCacheName(_cacheNameDetails.precache);
+  },
+  getRuntimeName: userCacheName => {
+    return userCacheName || _createCacheName(_cacheNameDetails.runtime);
+  }
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+// Safari doesn't print all console.groupCollapsed() arguments.
+// Related bug: https://bugs.webkit.org/show_bug.cgi?id=182754
+const isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
+
+const GREY = `#7f8c8d`;
+const GREEN = `#2ecc71`;
+const YELLOW = `#f39c12`;
+const RED = `#c0392b`;
+const BLUE = `#3498db`;
+
+const getDefaultLogLevel = () => LOG_LEVELS.log;
+
+let logLevel = getDefaultLogLevel();
+const shouldPrint = minLevel => logLevel <= minLevel;
+const setLoggerLevel = newLogLevel => logLevel = newLogLevel;
+const getLoggerLevel = () => logLevel;
+
+// We always want groups to be logged unless logLevel is silent.
+const groupLevel = LOG_LEVELS.error;
+
+const _print = function (keyName, logArgs, levelColor) {
+  const logLevel = keyName.indexOf('group') === 0 ? groupLevel : LOG_LEVELS[keyName];
+  if (!shouldPrint(logLevel)) {
+    return;
+  }
+
+  if (!levelColor || keyName === 'groupCollapsed' && isSafari) {
+    console[keyName](...logArgs);
+    return;
+  }
+
+  const logPrefix = ['%cworkbox', `background: ${levelColor}; color: white; padding: 2px 0.5em; ` + `border-radius: 0.5em;`];
+  console[keyName](...logPrefix, ...logArgs);
+};
+
+const groupEnd = () => {
+  if (shouldPrint(groupLevel)) {
+    console.groupEnd();
+  }
+};
+
+const defaultExport = {
+  groupEnd,
+  unprefixed: {
+    groupEnd
+  }
+};
+
+const setupLogs = (keyName, color) => {
+  defaultExport[keyName] = (...args) => _print(keyName, args, color);
+  defaultExport.unprefixed[keyName] = (...args) => _print(keyName, args);
+};
+
+const levelToColor = {
+  debug: GREY,
+  log: GREEN,
+  warn: YELLOW,
+  error: RED,
+  groupCollapsed: BLUE
+};
+Object.keys(levelToColor).forEach(keyName => setupLogs(keyName, levelToColor[keyName]));
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/*
+ * This method returns true if the current context is a service worker.
+ */
+const isSwEnv = moduleName => {
+  if (!('ServiceWorkerGlobalScope' in self)) {
+    throw new WorkboxError('not-in-sw', { moduleName });
+  }
+};
+
+/*
+ * This method throws if the supplied value is not an array.
+ * The destructed values are required to produce a meaningful error for users.
+ * The destructed and restructured object is so it's clear what is
+ * needed.
+ */
+const isArray = (value, { moduleName, className, funcName, paramName }) => {
+  if (!Array.isArray(value)) {
+    throw new WorkboxError('not-an-array', {
+      moduleName,
+      className,
+      funcName,
+      paramName
+    });
+  }
+};
+
+const hasMethod = (object, expectedMethod, { moduleName, className, funcName, paramName }) => {
+  const type = typeof object[expectedMethod];
+  if (type !== 'function') {
+    throw new WorkboxError('missing-a-method', { paramName, expectedMethod,
+      moduleName, className, funcName });
+  }
+};
+
+const isType = (object, expectedType, { moduleName, className, funcName, paramName }) => {
+  if (typeof object !== expectedType) {
+    throw new WorkboxError('incorrect-type', { paramName, expectedType,
+      moduleName, className, funcName });
+  }
+};
+
+const isInstance = (object, expectedClass, { moduleName, className, funcName,
+  paramName, isReturnValueProblem }) => {
+  if (!(object instanceof expectedClass)) {
+    throw new WorkboxError('incorrect-class', { paramName, expectedClass,
+      moduleName, className, funcName, isReturnValueProblem });
+  }
+};
+
+const isOneOf = (value, validValues, { paramName }) => {
+  if (!validValues.includes(value)) {
+    throw new WorkboxError('invalid-value', {
+      paramName,
+      value,
+      validValueDescription: `Valid values are ${JSON.stringify(validValues)}.`
+    });
+  }
+};
+
+const isArrayOfClass = (value, expectedClass, { moduleName, className, funcName, paramName }) => {
+  const error = new WorkboxError('not-array-of-class', {
+    value, expectedClass,
+    moduleName, className, funcName, paramName
+  });
+  if (!Array.isArray(value)) {
+    throw error;
+  }
+
+  for (let item of value) {
+    if (!(item instanceof expectedClass)) {
+      throw error;
+    }
+  }
+};
+
+const finalAssertExports = {
+  hasMethod,
+  isArray,
+  isInstance,
+  isOneOf,
+  isSwEnv,
+  isType,
+  isArrayOfClass
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/**
+ * Logs a warning to the user recommending changing
+ * to max-age=0 or no-cache.
+ *
+ * @param {string} cacheControlHeader
+ *
+ * @private
+ */
+function showWarning(cacheControlHeader) {
+  const docsUrl = 'https://developers.google.com/web/tools/workbox/guides/service-worker-checklist#cache-control_of_your_service_worker_file';
+  defaultExport.warn(`You are setting a 'cache-control' header of ` + `'${cacheControlHeader}' on your service worker file. This should be ` + `set to 'max-age=0' or 'no-cache' to ensure the latest service worker ` + `is served to your users. Learn more here: ${docsUrl}`);
+}
+
+/**
+ * Checks for cache-control header on SW file and
+ * warns the developer if it exists with a value
+ * other than max-age=0 or no-cache.
+ *
+ * @private
+ */
+function checkSWFileCacheHeaders() {
+  // This is wrapped as an iife to allow async/await while making
+  //  rollup exclude it in builds.
+  babelHelpers.asyncToGenerator(function* () {
+    try {
+      const swFile = self.location.href;
+      const response = yield fetch(swFile);
+      if (!response.ok) {
+        // Response failed so nothing we can check;
+        return;
+      }
+
+      if (!response.headers.has('cache-control')) {
+        // No cache control header.
+        return;
+      }
+
+      const cacheControlHeader = response.headers.get('cache-control');
+      const maxAgeResult = /max-age\s*=\s*(\d*)/g.exec(cacheControlHeader);
+      if (maxAgeResult) {
+        if (parseInt(maxAgeResult[1], 10) === 0) {
+          return;
+        }
+      }
+
+      if (cacheControlHeader.indexOf('no-cache') !== -1) {
+        return;
+      }
+
+      if (cacheControlHeader.indexOf('no-store') !== -1) {
+        return;
+      }
+
+      showWarning(cacheControlHeader);
+    } catch (err) {
+      // NOOP
+    }
+  })();
+}
+
+const finalCheckSWFileCacheHeaders = checkSWFileCacheHeaders;
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/**
+ * This class is never exposed publicly. Inidividual methods are exposed
+ * using jsdoc alias commands.
+ *
+ * @memberof workbox.core
+ * @private
+ */
+class WorkboxCore {
+  /**
+   * You should not instantiate this object directly.
+   *
+   * @private
+   */
+  constructor() {
+    // Give our version strings something to hang off of.
+    try {
+      self.workbox.v = self.workbox.v || {};
+    } catch (err) {}
+    // NOOP
+
+
+    // A WorkboxCore instance must be exported before we can use the logger.
+    // This is so it can get the current log level.
+    {
+      const padding = '   ';
+      defaultExport.groupCollapsed('Welcome to Workbox!');
+      defaultExport.unprefixed.log(`You are currently using a development build. ` + `By default this will switch to prod builds when not on localhost. ` + `You can force this with workbox.setConfig({debug: true|false}).`);
+      defaultExport.unprefixed.log(`📖 Read the guides and documentation\n` + `${padding}https://developers.google.com/web/tools/workbox/`);
+      defaultExport.unprefixed.log(`❓ Use the [workbox] tag on Stack Overflow to ask questions\n` + `${padding}https://stackoverflow.com/questions/ask?tags=workbox`);
+      defaultExport.unprefixed.log(`🐛 Found a bug? Report it on GitHub\n` + `${padding}https://github.com/GoogleChrome/workbox/issues/new`);
+      defaultExport.groupEnd();
+
+      if (typeof finalCheckSWFileCacheHeaders === 'function') {
+        finalCheckSWFileCacheHeaders();
+      }
+    }
+  }
+
+  /**
+   * Get the current cache names used by Workbox.
+   *
+   * `cacheNames.precache` is used for precached assets,
+   * `cacheNames.googleAnalytics` is used by `workbox-google-analytics` to
+   * store `analytics.js`,
+   * and `cacheNames.runtime` is used for everything else.
+   *
+   * @return {Object} An object with `precache` and `runtime` cache names.
+   *
+   * @alias workbox.core.cacheNames
+   */
+  get cacheNames() {
+    return {
+      googleAnalytics: cacheNames.getGoogleAnalyticsName(),
+      precache: cacheNames.getPrecacheName(),
+      runtime: cacheNames.getRuntimeName()
+    };
+  }
+
+  /**
+   * You can alter the default cache names used by the Workbox modules by
+   * changing the cache name details.
+   *
+   * Cache names are generated as `<prefix>-<Cache Name>-<suffix>`.
+   *
+   * @param {Object} details
+   * @param {Object} details.prefix The string to add to the beginning of
+   * the precache and runtime cache names.
+   * @param {Object} details.suffix The string to add to the end of
+   * the precache and runtime cache names.
+   * @param {Object} details.precache The cache name to use for precache
+   * caching.
+   * @param {Object} details.runtime The cache name to use for runtime caching.
+   * @param {Object} details.googleAnalytics The cache name to use for
+   * `workbox-google-analytics` caching.
+   *
+   * @alias workbox.core.setCacheNameDetails
+   */
+  setCacheNameDetails(details) {
+    {
+      Object.keys(details).forEach(key => {
+        finalAssertExports.isType(details[key], 'string', {
+          moduleName: 'workbox-core',
+          className: 'WorkboxCore',
+          funcName: 'setCacheNameDetails',
+          paramName: `details.${key}`
+        });
+      });
+
+      if ('precache' in details && details.precache.length === 0) {
+        throw new WorkboxError('invalid-cache-name', {
+          cacheNameId: 'precache',
+          value: details.precache
+        });
+      }
+
+      if ('runtime' in details && details.runtime.length === 0) {
+        throw new WorkboxError('invalid-cache-name', {
+          cacheNameId: 'runtime',
+          value: details.runtime
+        });
+      }
+
+      if ('googleAnalytics' in details && details.googleAnalytics.length === 0) {
+        throw new WorkboxError('invalid-cache-name', {
+          cacheNameId: 'googleAnalytics',
+          value: details.googleAnalytics
+        });
+      }
+    }
+
+    cacheNames.updateDetails(details);
+  }
+
+  /**
+   * Get the current log level.
+   *
+   * @return {number}.
+   *
+   * @alias workbox.core.logLevel
+   */
+  get logLevel() {
+    return getLoggerLevel();
+  }
+
+  /**
+   * Set the current log level passing in one of the values from
+   * [LOG_LEVELS]{@link module:workbox-core.LOG_LEVELS}.
+   *
+   * @param {number} newLevel The new log level to use.
+   *
+   * @alias workbox.core.setLogLevel
+   */
+  setLogLevel(newLevel) {
+    {
+      finalAssertExports.isType(newLevel, 'number', {
+        moduleName: 'workbox-core',
+        className: 'WorkboxCore',
+        funcName: 'logLevel [setter]',
+        paramName: `logLevel`
+      });
+    }
+
+    if (newLevel > LOG_LEVELS.silent || newLevel < LOG_LEVELS.debug) {
+      throw new WorkboxError('invalid-value', {
+        paramName: 'logLevel',
+        validValueDescription: `Please use a value from LOG_LEVELS, i.e ` + `'logLevel = workbox.core.LOG_LEVELS.debug'.`,
+        value: newLevel
+      });
+    }
+
+    setLoggerLevel(newLevel);
+  }
+}
+
+var defaultExport$1 = new WorkboxCore();
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+const getFriendlyURL = url => {
+  const urlObj = new URL(url, location);
+  if (urlObj.origin === location.origin) {
+    return urlObj.pathname;
+  }
+  return urlObj.href;
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+var pluginEvents = {
+  CACHE_DID_UPDATE: 'cacheDidUpdate',
+  CACHE_WILL_UPDATE: 'cacheWillUpdate',
+  CACHED_RESPONSE_WILL_BE_USED: 'cachedResponseWillBeUsed',
+  FETCH_DID_FAIL: 'fetchDidFail',
+  REQUEST_WILL_FETCH: 'requestWillFetch'
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+var pluginUtils = {
+  filter: (plugins, callbackname) => {
+    return plugins.filter(plugin => callbackname in plugin);
+  }
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/**
+ * Wrapper around cache.put().
+ *
+ * Will call `cacheDidUpdate` on plugins if the cache was updated.
+ *
+ * @param {string} cacheName
+ * @param {Request} request
+ * @param {Response} response
+ * @param {Array<Object>} [plugins]
+ *
+ * @private
+ * @memberof module:workbox-core
+ */
+const putWrapper = (() => {
+  var _ref = babelHelpers.asyncToGenerator(function* (cacheName, request, response, plugins = []) {
+    if (!response) {
+      {
+        defaultExport.error(`Cannot cache non-existant response for ` + `'${getFriendlyURL(request.url)}'.`);
+      }
+
+      throw new WorkboxError('cache-put-with-no-response', {
+        url: getFriendlyURL(request.url)
+      });
+    }
+
+    let responseToCache = yield _isResponseSafeToCache(request, response, plugins);
+
+    if (!responseToCache) {
+      {
+        defaultExport.debug(`Response '${getFriendlyURL(request.url)}' will not be ` + `cached.`, responseToCache);
+      }
+      return;
+    }
+
+    {
+      if (responseToCache.method && responseToCache.method !== 'GET') {
+        throw new WorkboxError('attempt-to-cache-non-get-request', {
+          url: getFriendlyURL(request.url),
+          method: responseToCache.method
+        });
+      }
+    }
+
+    const cache = yield caches.open(cacheName);
+
+    const updatePlugins = pluginUtils.filter(plugins, pluginEvents.CACHE_DID_UPDATE);
+
+    let oldResponse = updatePlugins.length > 0 ? yield matchWrapper(cacheName, request) : null;
+
+    {
+      defaultExport.debug(`Updating the '${cacheName}' cache with a new Response for ` + `${getFriendlyURL(request.url)}.`);
+    }
+
+    // Regardless of whether or not we'll end up invoking
+    // cacheDidUpdate, wait until the cache is updated.
+    yield cache.put(request, responseToCache);
+
+    for (let plugin of updatePlugins) {
+      yield plugin[pluginEvents.CACHE_DID_UPDATE].call(plugin, {
+        cacheName,
+        request,
+        oldResponse,
+        newResponse: responseToCache
+      });
+    }
+  });
+
+  return function putWrapper(_x, _x2, _x3) {
+    return _ref.apply(this, arguments);
+  };
+})();
+
+/**
+ * This is a wrapper around cache.match().
+ *
+ * @param {string} cacheName Name of the cache to match against.
+ * @param {Request} request The Request that will be used to look up cache
+ * entries.
+ * @param {Object} matchOptions Options passed to cache.match().
+ * @param {Array<Object>} [plugins] Array of plugins.
+ * @return {Response} A cached response if available.
+ *
+ * @private
+ * @memberof module:workbox-core
+ */
+const matchWrapper = (() => {
+  var _ref2 = babelHelpers.asyncToGenerator(function* (cacheName, request, matchOptions, plugins = []) {
+    const cache = yield caches.open(cacheName);
+    let cachedResponse = yield cache.match(request, matchOptions);
+    {
+      if (cachedResponse) {
+        defaultExport.debug(`Found a cached response in '${cacheName}'.`);
+      } else {
+        defaultExport.debug(`No cached response found in '${cacheName}'.`);
+      }
+    }
+    for (let plugin of plugins) {
+      if (pluginEvents.CACHED_RESPONSE_WILL_BE_USED in plugin) {
+        cachedResponse = yield plugin[pluginEvents.CACHED_RESPONSE_WILL_BE_USED].call(plugin, {
+          cacheName,
+          request,
+          matchOptions,
+          cachedResponse
+        });
+        {
+          if (cachedResponse) {
+            finalAssertExports.isInstance(cachedResponse, Response, {
+              moduleName: 'Plugin',
+              funcName: pluginEvents.CACHED_RESPONSE_WILL_BE_USED,
+              isReturnValueProblem: true
+            });
+          }
+        }
+      }
+    }
+    return cachedResponse;
+  });
+
+  return function matchWrapper(_x4, _x5, _x6) {
+    return _ref2.apply(this, arguments);
+  };
+})();
+
+/**
+ * This method will call cacheWillUpdate on the available plugins (or use
+ * response.ok) to determine if the Response is safe and valid to cache.
+ *
+ * @param {Request} request
+ * @param {Response} response
+ * @param {Array<Object>} plugins
+ * @return {Promise<Response>}
+ *
+ * @private
+ * @memberof module:workbox-core
+ */
+const _isResponseSafeToCache = (() => {
+  var _ref3 = babelHelpers.asyncToGenerator(function* (request, response, plugins) {
+    let responseToCache = response;
+    let pluginsUsed = false;
+    for (let plugin of plugins) {
+      if (pluginEvents.CACHE_WILL_UPDATE in plugin) {
+        pluginsUsed = true;
+        responseToCache = yield plugin[pluginEvents.CACHE_WILL_UPDATE].call(plugin, {
+          request,
+          response: responseToCache
+        });
+
+        {
+          if (responseToCache) {
+            finalAssertExports.isInstance(responseToCache, Response, {
+              moduleName: 'Plugin',
+              funcName: pluginEvents.CACHE_WILL_UPDATE,
+              isReturnValueProblem: true
+            });
+          }
+        }
+
+        if (!responseToCache) {
+          break;
+        }
+      }
+    }
+
+    if (!pluginsUsed) {
+      {
+        if (!responseToCache.ok) {
+          if (responseToCache.status === 0) {
+            defaultExport.warn(`The response for '${request.url}' is an opaque ` + `response. The caching strategy that you're using will not ` + `cache opaque responses by default.`);
+          } else {
+            defaultExport.debug(`The response for '${request.url}' returned ` + `a status code of '${response.status}' and won't be cached as a ` + `result.`);
+          }
+        }
+      }
+      responseToCache = responseToCache.ok ? responseToCache : null;
+    }
+
+    return responseToCache ? responseToCache : null;
+  });
+
+  return function _isResponseSafeToCache(_x7, _x8, _x9) {
+    return _ref3.apply(this, arguments);
+  };
+})();
+
+const cacheWrapper = {
+  put: putWrapper,
+  match: matchWrapper
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/**
+ * Wrapper around the fetch API.
+ *
+ * Will call requestWillFetch on available plugins.
+ *
+ * @param {Request|string} request
+ * @param {Object} fetchOptions
+ * @param {Array<Object>} [plugins]
+ * @return {Promise<Response>}
+ *
+ * @private
+ * @memberof module:workbox-core
+ */
+const wrappedFetch = (() => {
+  var _ref = babelHelpers.asyncToGenerator(function* (request, fetchOptions, plugins = []) {
+    if (typeof request === 'string') {
+      request = new Request(request);
+    }
+
+    {
+      finalAssertExports.isInstance(request, Request, {
+        paramName: request,
+        expectedClass: 'Request',
+        moduleName: 'workbox-core',
+        className: 'fetchWrapper',
+        funcName: 'wrappedFetch'
+      });
+    }
+
+    const failedFetchPlugins = pluginUtils.filter(plugins, pluginEvents.FETCH_DID_FAIL);
+
+    // If there is a fetchDidFail plugin, we need to save a clone of the
+    // original request before it's either modified by a requestWillFetch
+    // plugin or before the original request's body is consumed via fetch().
+    const originalRequest = failedFetchPlugins.length > 0 ? request.clone() : null;
+
+    try {
+      for (let plugin of plugins) {
+        if (pluginEvents.REQUEST_WILL_FETCH in plugin) {
+          request = yield plugin[pluginEvents.REQUEST_WILL_FETCH].call(plugin, {
+            request: request.clone()
+          });
+
+          {
+            if (request) {
+              finalAssertExports.isInstance(request, Request, {
+                moduleName: 'Plugin',
+                funcName: pluginEvents.CACHED_RESPONSE_WILL_BE_USED,
+                isReturnValueProblem: true
+              });
+            }
+          }
+        }
+      }
+    } catch (err) {
+      throw new WorkboxError('plugin-error-request-will-fetch', {
+        thrownError: err
+      });
+    }
+
+    // The request can be altered by plugins with `requestWillFetch` making
+    // the original request (Most likely from a `fetch` event) to be different
+    // to the Request we make. Pass both to `fetchDidFail` to aid debugging.
+    const pluginFilteredRequest = request.clone();
+
+    try {
+      const response = yield fetch(request, fetchOptions);
+      {
+        defaultExport.debug(`Network request for ` + `'${getFriendlyURL(request.url)}' returned a response with ` + `status '${response.status}'.`);
+      }
+      return response;
+    } catch (err) {
+      {
+        defaultExport.error(`Network request for ` + `'${getFriendlyURL(request.url)}' threw an error.`, err);
+      }
+
+      for (let plugin of failedFetchPlugins) {
+        yield plugin[pluginEvents.FETCH_DID_FAIL].call(plugin, {
+          originalRequest: originalRequest.clone(),
+          request: pluginFilteredRequest.clone()
+        });
+      }
+
+      throw err;
+    }
+  });
+
+  return function wrappedFetch(_x, _x2) {
+    return _ref.apply(this, arguments);
+  };
+})();
+
+const fetchWrapper = {
+  fetch: wrappedFetch
+};
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+/**
+ * A class that wraps common IndexedDB functionality in a promise-based API.
+ * It exposes all the underlying power and functionality of IndexedDB, but
+ * wraps the most commonly used features in a way that's much simpler to use.
+ *
+ * @private
+ */
+class DBWrapper {
+  /**
+   * @param {string} name
+   * @param {number} version
+   * @param {Object=} [callback]
+   * @param {function(this:DBWrapper, Event)} [callbacks.onupgradeneeded]
+   * @param {function(this:DBWrapper, Event)} [callbacks.onversionchange]
+   *     Defaults to DBWrapper.prototype._onversionchange when not specified.
+   */
+  constructor(name, version, {
+    onupgradeneeded,
+    onversionchange = this._onversionchange
+  } = {}) {
+    this._name = name;
+    this._version = version;
+    this._onupgradeneeded = onupgradeneeded;
+    this._onversionchange = onversionchange;
+
+    // If this is null, it means the database isn't open.
+    this._db = null;
+  }
+
+  /**
+   * Opens a connected to an IDBDatabase, invokes any onupgradedneeded
+   * callback, and added an onversionchange callback to the database.
+   *
+   * @return {IDBDatabase}
+   *
+   * @private
+   */
+  open() {
+    var _this = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      if (_this._db) return;
+
+      _this._db = yield new Promise(function (resolve, reject) {
+        // This flag is flipped to true if the timeout callback runs prior
+        // to the request failing or succeeding. Note: we use a timeout instead
+        // of an onblocked handler since there are cases where onblocked will
+        // never never run. A timeout better handles all possible scenarios:
+        // https://github.com/w3c/IndexedDB/issues/223
+        let openRequestTimedOut = false;
+        setTimeout(function () {
+          openRequestTimedOut = true;
+          reject(new Error('The open request was blocked and timed out'));
+        }, _this.OPEN_TIMEOUT);
+
+        const openRequest = indexedDB.open(_this._name, _this._version);
+        openRequest.onerror = function (evt) {
+          return reject(openRequest.error);
+        };
+        openRequest.onupgradeneeded = function (evt) {
+          if (openRequestTimedOut) {
+            openRequest.transaction.abort();
+            evt.target.result.close();
+          } else if (_this._onupgradeneeded) {
+            _this._onupgradeneeded(evt);
+          }
+        };
+        openRequest.onsuccess = function (evt) {
+          const db = evt.target.result;
+          if (openRequestTimedOut) {
+            db.close();
+          } else {
+            db.onversionchange = _this._onversionchange;
+            resolve(db);
+          }
+        };
+      });
+
+      return _this;
+    })();
+  }
+
+  /**
+   * Delegates to the native `get()` method for the object store.
+   *
+   * @param {string} storeName The name of the object store to put the value.
+   * @param {...*} args The values passed to the delegated method.
+   * @return {*} The key of the entry.
+   *
+   * @private
+   */
+  get(storeName, ...args) {
+    var _this2 = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      return yield _this2._call('get', storeName, 'readonly', ...args);
+    })();
+  }
+
+  /**
+   * Delegates to the native `add()` method for the object store.
+   *
+   * @param {string} storeName The name of the object store to put the value.
+   * @param {...*} args The values passed to the delegated method.
+   * @return {*} The key of the entry.
+   *
+   * @private
+   */
+  add(storeName, ...args) {
+    var _this3 = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      return yield _this3._call('add', storeName, 'readwrite', ...args);
+    })();
+  }
+
+  /**
+   * Delegates to the native `put()` method for the object store.
+   *
+   * @param {string} storeName The name of the object store to put the value.
+   * @param {...*} args The values passed to the delegated method.
+   * @return {*} The key of the entry.
+   *
+   * @private
+   */
+  put(storeName, ...args) {
+    var _this4 = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      return yield _this4._call('put', storeName, 'readwrite', ...args);
+    })();
+  }
+
+  /**
+   * Delegates to the native `delete()` method for the object store.
+   *
+   * @param {string} storeName
+   * @param {...*} args The values passed to the delegated method.
+   *
+   * @private
+   */
+  delete(storeName, ...args) {
+    var _this5 = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      yield _this5._call('delete', storeName, 'readwrite', ...args);
+    })();
+  }
+
+  /**
+   * Delegates to the native `getAll()` or polyfills it via the `find()`
+   * method in older browsers.
+   *
+   * @param {string} storeName
+   * @param {*} query
+   * @param {number} count
+   * @return {Array}
+   *
+   * @private
+   */
+  getAll(storeName, query, count) {
+    var _this6 = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      if ('getAll' in IDBObjectStore.prototype) {
+        return yield _this6._call('getAll', storeName, 'readonly', query, count);
+      } else {
+        return yield _this6.getAllMatching(storeName, { query, count });
+      }
+    })();
+  }
+
+  /**
+   * Supports flexible lookup in an object store by specifying an index,
+   * query, direction, and count. This method returns an array of objects
+   * with the signature .
+   *
+   * @param {string} storeName
+   * @param {Object} [opts]
+   * @param {IDBCursorDirection} [opts.direction]
+   * @param {*} [opts.query]
+   * @param {string} [opts.index] The index to use (if specified).
+   * @param {number} [opts.count] The max number of results to return.
+   * @param {boolean} [opts.includeKeys] When true, the structure of the
+   *     returned objects is changed from an array of values to an array of
+   *     objects in the form {key, primaryKey, value}.
+   * @return {Array}
+   *
+   * @private
+   */
+  getAllMatching(storeName, opts = {}) {
+    var _this7 = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      return yield _this7.transaction([storeName], 'readonly', function (stores, done) {
+        const store = stores[storeName];
+        const target = opts.index ? store.index(opts.index) : store;
+        const results = [];
+
+        target.openCursor(opts.query, opts.direction).onsuccess = function (evt) {
+          const cursor = evt.target.result;
+          if (cursor) {
+            const { primaryKey, key, value } = cursor;
+            results.push(opts.includeKeys ? { primaryKey, key, value } : value);
+            if (opts.count && results.length >= opts.count) {
+              done(results);
+            } else {
+              cursor.continue();
+            }
+          } else {
+            done(results);
+          }
+        };
+      });
+    })();
+  }
+
+  /**
+   * Accepts a list of stores, a transaction type, and a callback and
+   * performs a transaction. A promise is returned that resolves to whatever
+   * value the callback chooses. The callback holds all the transaction logic
+   * and is invoked with three arguments:
+   *   1. An object mapping object store names to IDBObjectStore values.
+   *   2. A `done` function, that's used to resolve the promise when
+   *      when the transaction is done.
+   *   3. An `abort` function that can be called to abort the transaction
+   *      at any time.
+   *
+   * @param {Array<string>} storeNames An array of object store names
+   *     involved in the transaction.
+   * @param {string} type Can be `readonly` or `readwrite`.
+   * @param {function(Object, function(), function(*)):?IDBRequest} callback
+   * @return {*} The result of the transaction ran by the callback.
+   *
+   * @private
+   */
+  transaction(storeNames, type, callback) {
+    var _this8 = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      yield _this8.open();
+      const result = yield new Promise(function (resolve, reject) {
+        const txn = _this8._db.transaction(storeNames, type);
+        const done = function (value) {
+          return resolve(value);
+        };
+        const abort = function () {
+          reject(new Error('The transaction was manually aborted'));
+          txn.abort();
+        };
+        txn.onerror = function (evt) {
+          return reject(evt.target.error);
+        };
+        txn.onabort = function (evt) {
+          return reject(evt.target.error);
+        };
+        txn.oncomplete = function () {
+          return resolve();
+        };
+
+        const stores = {};
+        for (const storeName of storeNames) {
+          stores[storeName] = txn.objectStore(storeName);
+        }
+        callback(stores, done, abort);
+      });
+      return result;
+    })();
+  }
+
+  /**
+   * Delegates async to a native IDBObjectStore method.
+   *
+   * @param {string} method The method name.
+   * @param {string} storeName The object store name.
+   * @param {string} type Can be `readonly` or `readwrite`.
+   * @param {...*} args The list of args to pass to the native method.
+   * @return {*} The result of the transaction.
+   *
+   * @private
+   */
+  _call(method, storeName, type, ...args) {
+    var _this9 = this;
+
+    return babelHelpers.asyncToGenerator(function* () {
+      yield _this9.open();
+      const callback = function (stores, done) {
+        stores[storeName][method](...args).onsuccess = function (evt) {
+          done(evt.target.result);
+        };
+      };
+
+      return yield _this9.transaction([storeName], type, callback);
+    })();
+  }
+
+  /**
+   * The default onversionchange handler, which closes the database so other
+   * connections can open without being blocked.
+   *
+   * @param {Event} evt
+   *
+   * @private
+   */
+  _onversionchange(evt) {
+    this.close();
+  }
+
+  /**
+   * Closes the connection opened by `DBWrapper.open()`. Generally this method
+   * doesn't need to be called since:
+   *   1. It's usually better to keep a connection open since opening
+   *      a new connection is somewhat slow.
+   *   2. Connections are automatically closed when the reference is
+   *      garbage collected.
+   * The primary use case for needing to close a connection is when another
+   * reference (typically in another tab) needs to upgrade it and would be
+   * blocked by the current, open connection.
+   *
+   * @private
+   */
+  close() {
+    if (this._db) this._db.close();
+  }
+}
+
+// Exposed to let users modify the default timeout on a per-instance
+// or global basis.
+DBWrapper.prototype.OPEN_TIMEOUT = 2000;
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+
+var _private = Object.freeze({
+	logger: defaultExport,
+	assert: finalAssertExports,
+	cacheNames: cacheNames,
+	cacheWrapper: cacheWrapper,
+	fetchWrapper: fetchWrapper,
+	WorkboxError: WorkboxError,
+	DBWrapper: DBWrapper,
+	getFriendlyURL: getFriendlyURL
+});
+
+/*
+  Copyright 2017 Google Inc.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+*/
+
+const finalExports = Object.assign(defaultExport$1, {
+  LOG_LEVELS,
+  _private
+});
+
+return finalExports;
+
+}());
+
+//# sourceMappingURL=workbox-core.dev.js.map