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handler = this._defaultHandler;
}
if (!handler) {
if (process.env.NODE_ENV !== 'production') {
// No handler so Workbox will do nothing. If logs is set of debug
// i.e. verbose, we should print out this information.
logger.debug(`No route found for: ${getFriendlyURL(url)}`);
}
return;
}
if (process.env.NODE_ENV !== 'production') {
// We have a handler, meaning Workbox is going to handle the route.
// print the routing details to the console.
logger.groupCollapsed(`Router is responding to: ${getFriendlyURL(url)}`);
debugMessages.forEach((msg) => {
if (Array.isArray(msg)) {
logger.log(...msg);
} else {
logger.log(msg);
}
});
logger.groupEnd();
}
// Wrap in try and catch in case the handle method throws a synchronous
// error. It should still callback to the catch handler.
let responsePromise;
try {
responsePromise = responsePromise.then((response) => {
// Workbox is going to handle the route.
// print the routing details to the console.
logger.groupCollapsed(`Precaching is responding to: ` +
getFriendlyURL(event.request.url));
logger.log(`Serving the precached url: ${precachedURL}`);
logger.groupCollapsed(`View request details here.`);
logger.log(event.request);
logger.groupEnd();
logger.groupCollapsed(`View response details here.`);
logger.log(response);
logger.groupEnd();
logger.groupEnd();
return response;
});
}
responsePromise = responsePromise.then((response) => {
// Workbox is going to handle the route.
// print the routing details to the console.
logger.groupCollapsed(`Precaching is responding to: ` +
getFriendlyURL(event.request.url));
logger.log(`Serving the precached url: ${precachedURL}`);
logger.groupCollapsed(`View request details here.`);
logger.log(event.request);
logger.groupEnd();
logger.groupCollapsed(`View response details here.`);
logger.log(response);
logger.groupEnd();
logger.groupEnd();
return response;
});
}
this._getNetworkPromise({timeoutId, request, event, logs});
promises.push(networkPromise);
// Promise.race() will resolve as soon as the first promise resolves.
let response = await Promise.race(promises);
// If Promise.race() resolved with null, it might be due to a network
// timeout + a cache miss. If that were to happen, we'd rather wait until
// the networkPromise resolves instead of returning null.
// Note that it's fine to await an already-resolved promise, so we don't
// have to check to see if it's still "in flight".
if (!response) {
response = await networkPromise;
}
if (process.env.NODE_ENV !== 'production') {
logger.groupCollapsed(
messages.strategyStart('NetworkFirst', request));
for (let log of logs) {
logger.log(log);
}
messages.printFinalResponse(response);
logger.groupEnd();
}
if (!response) {
throw new WorkboxError('no-response', {url: request.url});
}
return response;
}
const minTimestamp = this._maxAgeSeconds ?
Date.now() - (this._maxAgeSeconds * 1000) : 0;
const urlsExpired = await this._timestampModel.expireEntries(
minTimestamp, this._maxEntries);
// Delete URLs from the cache
const cache = await self.caches.open(this._cacheName);
for (const url of urlsExpired) {
await cache.delete(url);
}
if (process.env.NODE_ENV !== 'production') {
if (urlsExpired.length > 0) {
logger.groupCollapsed(
`Expired ${urlsExpired.length} ` +
`${urlsExpired.length === 1 ? 'entry' : 'entries'} and removed ` +
`${urlsExpired.length === 1 ? 'it' : 'them'} from the ` +
`'${this._cacheName}' cache.`);
logger.log(`Expired the following ${urlsExpired.length === 1 ?
'URL' : 'URLs'}:`);
urlsExpired.forEach((url) => logger.log(` ${url}`));
logger.groupEnd();
} else {
logger.debug(`Cache expiration ran and found no entries to remove.`);
}
}
this._isRunning = false;
if (this._rerunRequested) {
this._rerunRequested = false;
status: 206,
statusText: 'Partial Content',
headers: originalResponse.headers,
});
slicedResponse.headers.set('Content-Length', String(slicedBlobSize));
slicedResponse.headers.set('Content-Range',
`bytes ${effectiveBoundaries.start}-${effectiveBoundaries.end - 1}/` +
originalBlob.size);
return slicedResponse;
} catch (error) {
if (process.env.NODE_ENV !== 'production') {
logger.warn(`Unable to construct a partial response; returning a ` +
`416 Range Not Satisfiable response instead.`);
logger.groupCollapsed(`View details here.`);
logger.log(error);
logger.log(request);
logger.log(originalResponse);
logger.groupEnd();
}
return new Response('', {
status: 416,
statusText: 'Range Not Satisfiable',
});
}
}
cacheable = this._statuses.includes(response.status);
}
if (this._headers && cacheable) {
cacheable = Object.keys(this._headers).some((headerName) => {
return response.headers.get(headerName) === this._headers![headerName];
});
}
if (process.env.NODE_ENV !== 'production') {
if (!cacheable) {
logger.groupCollapsed(`The request for ` +
`'${getFriendlyURL(response.url)}' returned a response that does ` +
`not meet the criteria for being cached.`);
logger.groupCollapsed(`View cacheability criteria here.`);
logger.log(`Cacheable statuses: ` +
JSON.stringify(this._statuses));
logger.log(`Cacheable headers: ` +
JSON.stringify(this._headers, null, 2));
logger.groupEnd();
const logFriendlyHeaders: {[key: string]: string} = {};
response.headers.forEach((value, key) => {
logFriendlyHeaders[key] = value;
});
logger.groupCollapsed(`View response status and headers here.`);
logger.log(`Response status: ` + response.status);
logger.log(`Response headers: ` +
JSON.stringify(logFriendlyHeaders, null, 2));
logger.groupEnd();
let cacheable = true;
if (this._statuses) {
cacheable = this._statuses.includes(response.status);
}
if (this._headers && cacheable) {
cacheable = Object.keys(this._headers).some((headerName) => {
return response.headers.get(headerName) === this._headers![headerName];
});
}
if (process.env.NODE_ENV !== 'production') {
if (!cacheable) {
logger.groupCollapsed(`The request for ` +
`'${getFriendlyURL(response.url)}' returned a response that does ` +
`not meet the criteria for being cached.`);
logger.groupCollapsed(`View cacheability criteria here.`);
logger.log(`Cacheable statuses: ` +
JSON.stringify(this._statuses));
logger.log(`Cacheable headers: ` +
JSON.stringify(this._headers, null, 2));
logger.groupEnd();
const logFriendlyHeaders: {[key: string]: string} = {};
response.headers.forEach((value, key) => {
logFriendlyHeaders[key] = value;
});
logger.groupCollapsed(`View response status and headers here.`);
className: 'CacheOnly',
funcName: 'makeRequest',
paramName: 'request',
});
}
const response = await cacheWrapper.match({
cacheName: this._cacheName,
request,
event,
matchOptions: this._matchOptions,
plugins: this._plugins,
});
if (process.env.NODE_ENV !== 'production') {
logger.groupCollapsed(
messages.strategyStart('CacheOnly', request));
if (response) {
logger.log(`Found a cached response in the '${this._cacheName}'` +
` cache.`);
messages.printFinalResponse(response);
} else {
logger.log(`No response found in the '${this._cacheName}' cache.`);
}
logger.groupEnd();
}
if (!response) {
throw new WorkboxError('no-response', {url: request.url});
}
return response;
}