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317 lines
12 KiB
JavaScript
317 lines
12 KiB
JavaScript
9 months ago
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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0 && (module.exports = {
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markAssetError: null,
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isAssetError: null,
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getClientBuildManifest: null,
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createRouteLoader: null
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});
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function _export(target, all) {
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for(var name in all)Object.defineProperty(target, name, {
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enumerable: true,
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get: all[name]
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});
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}
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_export(exports, {
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markAssetError: function() {
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return markAssetError;
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},
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isAssetError: function() {
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return isAssetError;
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},
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getClientBuildManifest: function() {
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return getClientBuildManifest;
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},
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createRouteLoader: function() {
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return createRouteLoader;
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}
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});
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const _interop_require_default = require("@swc/helpers/_/_interop_require_default");
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const _getassetpathfromroute = /*#__PURE__*/ _interop_require_default._(require("../shared/lib/router/utils/get-asset-path-from-route"));
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const _trustedtypes = require("./trusted-types");
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const _requestidlecallback = require("./request-idle-callback");
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const _deploymentid = require("../build/deployment-id");
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// 3.8s was arbitrarily chosen as it's what https://web.dev/interactive
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// considers as "Good" time-to-interactive. We must assume something went
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// wrong beyond this point, and then fall-back to a full page transition to
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// show the user something of value.
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const MS_MAX_IDLE_DELAY = 3800;
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function withFuture(key, map, generator) {
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let entry = map.get(key);
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if (entry) {
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if ("future" in entry) {
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return entry.future;
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}
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return Promise.resolve(entry);
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}
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let resolver;
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const prom = new Promise((resolve)=>{
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resolver = resolve;
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});
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map.set(key, entry = {
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resolve: resolver,
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future: prom
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});
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return generator ? generator()// eslint-disable-next-line no-sequences
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.then((value)=>(resolver(value), value)).catch((err)=>{
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map.delete(key);
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throw err;
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}) : prom;
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}
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const ASSET_LOAD_ERROR = Symbol("ASSET_LOAD_ERROR");
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function markAssetError(err) {
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return Object.defineProperty(err, ASSET_LOAD_ERROR, {});
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}
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function isAssetError(err) {
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return err && ASSET_LOAD_ERROR in err;
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}
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function hasPrefetch(link) {
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try {
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link = document.createElement("link");
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return(// detect IE11 since it supports prefetch but isn't detected
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// with relList.support
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!!window.MSInputMethodContext && !!document.documentMode || link.relList.supports("prefetch"));
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} catch (e) {
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return false;
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}
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}
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const canPrefetch = hasPrefetch();
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const getAssetQueryString = ()=>{
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return (0, _deploymentid.getDeploymentIdQueryOrEmptyString)();
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};
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function prefetchViaDom(href, as, link) {
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return new Promise((resolve, reject)=>{
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const selector = '\n link[rel="prefetch"][href^="' + href + '"],\n link[rel="preload"][href^="' + href + '"],\n script[src^="' + href + '"]';
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if (document.querySelector(selector)) {
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return resolve();
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}
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link = document.createElement("link");
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// The order of property assignment here is intentional:
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if (as) link.as = as;
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link.rel = "prefetch";
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link.crossOrigin = process.env.__NEXT_CROSS_ORIGIN;
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link.onload = resolve;
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link.onerror = ()=>reject(markAssetError(new Error("Failed to prefetch: " + href)));
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// `href` should always be last:
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link.href = href;
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document.head.appendChild(link);
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});
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}
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function appendScript(src, script) {
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return new Promise((resolve, reject)=>{
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script = document.createElement("script");
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// The order of property assignment here is intentional.
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// 1. Setup success/failure hooks in case the browser synchronously
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// executes when `src` is set.
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script.onload = resolve;
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script.onerror = ()=>reject(markAssetError(new Error("Failed to load script: " + src)));
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// 2. Configure the cross-origin attribute before setting `src` in case the
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// browser begins to fetch.
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script.crossOrigin = process.env.__NEXT_CROSS_ORIGIN;
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// 3. Finally, set the source and inject into the DOM in case the child
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// must be appended for fetching to start.
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script.src = src;
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document.body.appendChild(script);
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});
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}
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// We wait for pages to be built in dev before we start the route transition
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// timeout to prevent an un-necessary hard navigation in development.
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let devBuildPromise;
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// Resolve a promise that times out after given amount of milliseconds.
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function resolvePromiseWithTimeout(p, ms, err) {
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return new Promise((resolve, reject)=>{
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let cancelled = false;
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p.then((r)=>{
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// Resolved, cancel the timeout
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cancelled = true;
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resolve(r);
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}).catch(reject);
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// We wrap these checks separately for better dead-code elimination in
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// production bundles.
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if (process.env.NODE_ENV === "development") {
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(devBuildPromise || Promise.resolve()).then(()=>{
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(0, _requestidlecallback.requestIdleCallback)(()=>setTimeout(()=>{
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if (!cancelled) {
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reject(err);
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}
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}, ms));
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});
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}
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if (process.env.NODE_ENV !== "development") {
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(0, _requestidlecallback.requestIdleCallback)(()=>setTimeout(()=>{
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if (!cancelled) {
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reject(err);
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}
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}, ms));
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}
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});
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}
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function getClientBuildManifest() {
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if (self.__BUILD_MANIFEST) {
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return Promise.resolve(self.__BUILD_MANIFEST);
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}
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const onBuildManifest = new Promise((resolve)=>{
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// Mandatory because this is not concurrent safe:
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const cb = self.__BUILD_MANIFEST_CB;
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self.__BUILD_MANIFEST_CB = ()=>{
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resolve(self.__BUILD_MANIFEST);
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cb && cb();
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};
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});
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return resolvePromiseWithTimeout(onBuildManifest, MS_MAX_IDLE_DELAY, markAssetError(new Error("Failed to load client build manifest")));
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}
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function getFilesForRoute(assetPrefix, route) {
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if (process.env.NODE_ENV === "development") {
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const scriptUrl = assetPrefix + "/_next/static/chunks/pages" + encodeURI((0, _getassetpathfromroute.default)(route, ".js")) + getAssetQueryString();
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return Promise.resolve({
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scripts: [
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(0, _trustedtypes.__unsafeCreateTrustedScriptURL)(scriptUrl)
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],
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// Styles are handled by `style-loader` in development:
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css: []
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});
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}
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return getClientBuildManifest().then((manifest)=>{
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if (!(route in manifest)) {
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throw markAssetError(new Error("Failed to lookup route: " + route));
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}
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const allFiles = manifest[route].map((entry)=>assetPrefix + "/_next/" + encodeURI(entry));
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return {
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scripts: allFiles.filter((v)=>v.endsWith(".js")).map((v)=>(0, _trustedtypes.__unsafeCreateTrustedScriptURL)(v) + getAssetQueryString()),
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css: allFiles.filter((v)=>v.endsWith(".css")).map((v)=>v + getAssetQueryString())
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};
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});
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}
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function createRouteLoader(assetPrefix) {
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const entrypoints = new Map();
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const loadedScripts = new Map();
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const styleSheets = new Map();
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const routes = new Map();
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function maybeExecuteScript(src) {
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// With HMR we might need to "reload" scripts when they are
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// disposed and readded. Executing scripts twice has no functional
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// differences
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if (process.env.NODE_ENV !== "development") {
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let prom = loadedScripts.get(src.toString());
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if (prom) {
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return prom;
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}
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// Skip executing script if it's already in the DOM:
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if (document.querySelector('script[src^="' + src + '"]')) {
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return Promise.resolve();
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}
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loadedScripts.set(src.toString(), prom = appendScript(src));
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return prom;
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} else {
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return appendScript(src);
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}
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}
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function fetchStyleSheet(href) {
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let prom = styleSheets.get(href);
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if (prom) {
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return prom;
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}
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styleSheets.set(href, prom = fetch(href).then((res)=>{
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if (!res.ok) {
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throw new Error("Failed to load stylesheet: " + href);
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}
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return res.text().then((text)=>({
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href: href,
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content: text
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}));
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}).catch((err)=>{
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throw markAssetError(err);
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}));
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return prom;
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}
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return {
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whenEntrypoint (route) {
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return withFuture(route, entrypoints);
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},
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onEntrypoint (route, execute) {
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(execute ? Promise.resolve().then(()=>execute()).then((exports1)=>({
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component: exports1 && exports1.default || exports1,
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exports: exports1
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}), (err)=>({
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error: err
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})) : Promise.resolve(undefined)).then((input)=>{
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const old = entrypoints.get(route);
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if (old && "resolve" in old) {
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if (input) {
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entrypoints.set(route, input);
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old.resolve(input);
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}
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} else {
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if (input) {
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entrypoints.set(route, input);
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} else {
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entrypoints.delete(route);
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}
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// when this entrypoint has been resolved before
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// the route is outdated and we want to invalidate
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// this cache entry
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routes.delete(route);
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}
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});
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},
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loadRoute (route, prefetch) {
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return withFuture(route, routes, ()=>{
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let devBuildPromiseResolve;
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if (process.env.NODE_ENV === "development") {
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devBuildPromise = new Promise((resolve)=>{
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devBuildPromiseResolve = resolve;
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});
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}
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return resolvePromiseWithTimeout(getFilesForRoute(assetPrefix, route).then((param)=>{
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let { scripts, css } = param;
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return Promise.all([
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entrypoints.has(route) ? [] : Promise.all(scripts.map(maybeExecuteScript)),
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Promise.all(css.map(fetchStyleSheet))
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]);
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}).then((res)=>{
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return this.whenEntrypoint(route).then((entrypoint)=>({
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entrypoint,
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styles: res[1]
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}));
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}), MS_MAX_IDLE_DELAY, markAssetError(new Error("Route did not complete loading: " + route))).then((param)=>{
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let { entrypoint, styles } = param;
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const res = Object.assign({
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styles: styles
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}, entrypoint);
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return "error" in entrypoint ? entrypoint : res;
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}).catch((err)=>{
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if (prefetch) {
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// we don't want to cache errors during prefetch
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throw err;
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}
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return {
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error: err
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};
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}).finally(()=>devBuildPromiseResolve == null ? void 0 : devBuildPromiseResolve());
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});
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},
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prefetch (route) {
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// https://github.com/GoogleChromeLabs/quicklink/blob/453a661fa1fa940e2d2e044452398e38c67a98fb/src/index.mjs#L115-L118
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// License: Apache 2.0
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let cn;
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if (cn = navigator.connection) {
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// Don't prefetch if using 2G or if Save-Data is enabled.
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if (cn.saveData || /2g/.test(cn.effectiveType)) return Promise.resolve();
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}
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return getFilesForRoute(assetPrefix, route).then((output)=>Promise.all(canPrefetch ? output.scripts.map((script)=>prefetchViaDom(script.toString(), "script")) : [])).then(()=>{
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(0, _requestidlecallback.requestIdleCallback)(()=>this.loadRoute(route, true).catch(()=>{}));
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}).catch(// swallow prefetch errors
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()=>{});
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}
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};
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}
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if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
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Object.defineProperty(exports.default, '__esModule', { value: true });
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Object.assign(exports.default, exports);
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module.exports = exports.default;
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}
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//# sourceMappingURL=route-loader.js.map
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