使用工作箱时如何从缓存的 url 中忽略 url 查询字符串？

Question

Is there a way to ignore query string "?screenSize=" from below registered route using workbox! If I can use regex how would i write it in below scenario? Basically, I am looking to match the cache no matter what is the screenSize querystring.

workboxSW.router.registerRoute('https://example.com/data/image?screenSize=980',
workboxSW.strategies.cacheFirst({
    cacheName: 'mycache',
    cacheExpiration: {
        maxEntries: 50
    },
    cacheableResponse: {statuses: [0, 200]}
})
);

After trying the cachedResponseWillBeUsed plugin: I do not see the plugin is applied:

Answer 1

Update: As of Workbox v4.2.0, the new cacheKeyWillBeUsed lifecycle callback can help override the default cache key for both read and write operations: https://github.com/GoogleChrome/workbox/releases/tag/v4.2.0

Original response:

You should be able to do this by writing a cachedResponseWillBeUsed plugin that you pass in when you configure the strategy:

// See https://workboxjs.org/reference-docs/latest/module-workbox-runtime-caching.RequestWrapper.html#.cachedResponseWillBeUsed
const cachedResponseWillBeUsed = ({cache, request, cachedResponse}) => {
  // If there's already a match against the request URL, return it.
  if (cachedResponse) {
    return cachedResponse;
  }

  // Otherwise, return a match for a specific URL:
  const urlToMatch = 'https://example.com/data/generic/image.jpg';
  return caches.match(urlToMatch);
};

const imageCachingStrategy = workboxSW.strategies.cacheFirst({
  cacheName: 'mycache',
  cacheExpiration: {
      maxEntries: 50
  },
  cacheableResponse: {statuses: [0, 200]},
  plugins: [{cachedResponseWillBeUsed}]
});


workboxSW.router.registerRoute(
  new RegExp('^https://example\.com/data/'),
  imageCachingStrategy
);

Answer 2

To build on the other answer, caches.match has an option ignoreSearch , so we can simply try again with the same url:

cachedResponseWillBeUsed = ({cache, request, cachedResponse}) => {
  if (cachedResponse) {
    return cachedResponse;
  }

  // this will match same url/diff query string where the original failed
  return caches.match(request.url, { ignoreSearch: true });
};

Answer 3

As of v5, building on aw04's answer, the code should read as follows:

const ignoreQueryStringPlugin = {
    cachedResponseWillBeUsed: async({cacheName, request, matchOptions, cachedResponse, event}) => {
        console.log(request.url);
        if (cachedResponse) {
            return cachedResponse;
        }

        // this will match same url/diff query string where the original failed
        return caches.match(request.url, {ignoreSearch: true});
    }
};

registerRoute(
    new RegExp('...'),
    new NetworkFirst({
        cacheName: 'cache',
        plugins: [
            ignoreQueryStringPlugin
        ],
    })
);

Answer 4

ignoreURLParametersMatching parameter worked for me:

https://developers.google.com/web/tools/workbox/modules/workbox-precaching#ignore_url_parameters

Answer 5

You can use the cacheKeyWillBeUsed simply, modifying the saved cache key to ignore the query at all, and matching for every response to the url with any query.

const ignoreQueryStringPlugin = {
 cacheKeyWillBeUsed: async ({request, mode, params, event, state}) => {
  //here you can extract the fix part of the url you want to cache without the query
  curl = new URL(request.url);
  return curl.pathname;

 }
};

and add it to the strategy

workbox.routing.registerRoute(/\/(\?.+)?/,new 
 workbox.strategies.StaleWhileRevalidate({
  matchOptions: {
   ignoreSearch: true,
  },
  plugins: [
   ignoreQueryStringPlugin
  ],
}));