更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/workbox-precaching/src/utils/generateURLVariations.ts

@@ -0,0 +1,60 @@
+/*
+  Copyright 2019 Google LLC
+
+  Use of this source code is governed by an MIT-style
+  license that can be found in the LICENSE file or at
+  https://opensource.org/licenses/MIT.
+*/
+
+import {removeIgnoredSearchParams} from './removeIgnoredSearchParams.js';
+import {PrecacheRouteOptions} from '../_types.js';
+import '../_version.js';
+
+/**
+ * Generator function that yields possible variations on the original URL to
+ * check, one at a time.
+ *
+ * @param {string} url
+ * @param {Object} options
+ *
+ * @private
+ * @memberof workbox-precaching
+ */
+export function* generateURLVariations(
+  url: string,
+  {
+    ignoreURLParametersMatching = [/^utm_/, /^fbclid$/],
+    directoryIndex = 'index.html',
+    cleanURLs = true,
+    urlManipulation,
+  }: PrecacheRouteOptions = {},
+): Generator<string, void, unknown> {
+  const urlObject = new URL(url, location.href);
+  urlObject.hash = '';
+  yield urlObject.href;
+
+  const urlWithoutIgnoredParams = removeIgnoredSearchParams(
+    urlObject,
+    ignoreURLParametersMatching,
+  );
+  yield urlWithoutIgnoredParams.href;
+
+  if (directoryIndex && urlWithoutIgnoredParams.pathname.endsWith('/')) {
+    const directoryURL = new URL(urlWithoutIgnoredParams.href);
+    directoryURL.pathname += directoryIndex;
+    yield directoryURL.href;
+  }
+
+  if (cleanURLs) {
+    const cleanURL = new URL(urlWithoutIgnoredParams.href);
+    cleanURL.pathname += '.html';
+    yield cleanURL.href;
+  }
+
+  if (urlManipulation) {
+    const additionalURLs = urlManipulation({url: urlObject});
+    for (const urlToAttempt of additionalURLs) {
+      yield urlToAttempt.href;
+    }
+  }
+}