Changelog

v135

• Introduce https://esm.sh/run
• worker: Use raw.esm.sh hostname for ?raw option
• Add ?no-bundle option
• Support esm.sh field in package.json
• Fix sub-module resolving (close #754, #743)
• Upgrade esbuild to 0.19.7

v134

• Add transformOnly option for build api
• Add allowList in config (#745 by @olekenneth)
• Improved Deno CLI (#742 by @Kyiro)
• Worker: fix dist version lookup
• Fix exported names from a dependency (close #729, #750)
• Fix: write .npmrc file if NpmRegistry is set (close #737) (#751 by @edeustace)
• Upgrade esbuild to 0.19.5

v133

• Add ?raw to support requests for raw package source files (#731 by @johnyanarella)
• Add global setMaxListeners to node:events polyfill (#719)
• cjs-lexer: resolving error now doesn’t break build (close #738)
• Fix cwd method of node:process polyfill (close #718)
• Fix applyConditions function use node condition for browser (close #732)
• Fix *.css.js path (close #728)
• Fix some invalid require imports (close #724)
• Fix relative path resolving of browser in package.json
• Upgrade esbuild to 0.19.4

v132

• Resolve node internal modules when ?external=* set (close #714)
• Fix builds with bigint and top-level-await for all targets (close #711)
• Fix node:process ployfill module mssing the hrtime method
• Fix docker image missing git command
• esm-worker: add varyUA option for polyfill modules

v131

• Add cache layer for the /build API
• Fix dts transformer resolver ignoring *.mjs url
• fix ?external option ignoring sub-modules
• Use raw order of the exports in package.json (close #705)
• Redirect old build path (.js) to new build path (.mjs) (close #703)
• Upgrade esbuild to 0.19.2

v130

• esm-cjs-lexer: support minified UMD exports (#689)
• Support sub .mjs module (close #691)
• Fix ?bundle mode ignores node_process.js (close #694)
• Upgrade @types/react@18 to 18.2.15
• Upgrade esbuild to 0.18.17

v129

• BREAKING: Remove x-esm-deps header (close #683)
• Sort exports of package.json when looping (close #683)
• Don’t replace typeof window for deno target (close #681)
• Don’t replace node global variable for ?target=node
• Fix dts transformer (close #670)
• Fix depreacted message with "
• esm-worker: Fix cacheKey with x-real-origin header

v128

• Add official Docker image: https://ghcr.io/esm-dev/esm.sh
• Fix missed ?external of deps
• Fix duplicate Access-Control-Expose-Headers headers
• Fix dts transform for imports with both default and named imports (#675 by @hayes)
• Don’t bundle dynamic imports
• Upgrade stableBuild to v128

v127

• Add preload imports
• Add modern-normalize to the cssPackages
• Fix subpath not be resovled with ?alias (close #671)
• Fix dts transformer for “*.d” path imports (close #660)
• Fix source map mappings (close #668)
• CLI: Fix update failure caused by gh module (#661 by @lifegpc)
• Upgrade esbuild to 0.18.10

v126

• breaking: the esm tag function of build API now imorts module

  import { esm } from "https://esm.sh/build";
  const mod = await esm`
    export const foo:string = "bar"
  `;
  console.log(mod.foo); // "bar"

• cjs-lexer: support annotated exports (close #659)
• Add support for basic auth (#657 by @johnpangalos)

v125

• Fix node-fetch import in cjs modules (close #649)
• Add node:worker_threads polyfill(fake) (close #648)
• Use denonext target for Deno >= 1.33.2 (close #646)
• Fix .json.js path (close #645)
• Fix cache missing content (close #641)
• Upgrade deno/std to 0.177.1

v124

• Fix the dts walker (close #642)

v123

• Add /server endpoint for Deno to serve esm.sh locally
• Add scope to config (#636 by @johnpangalos)
• Fix .d.ts walker (close #640)
• Fix packages with v prefix in version (close #639)
• Fix findFiles function (close #638)

v122

• Use stable imports order
• Support more asset extnames
• esm-worker: Use X-Real-Origin and X-Esm-Worker-Version headers
• Fix worker CORS issue (close #631)
• Fix sub-module resolving (close #633)
• Fix undefined content-type header (close #635)

v121

• Use browser field for package main if possible

  {
    "name": "pkg",
    "version": "1.0.0",
    "main": "./index.js",
    "browser": {
      "./index.js": "./browser.js"
    }
  }

• Fix redirects for ?css and GET /build
• Fix *.js.js module path (close #627)
• Fix cjs imports (close #629, #626)
• Add pako to the requireModeAllowList

v120

• build-api: Support types option
• Open-source the cloudflare worker
• Support HEAD method
• Fix bare path for css/custom build
• Fixing type only packages missing the X-Typescript-Types header
• Fix cjs-lexer exports resloving
• Use empty object instead of null for browser exclude (close #613)
• Add zlib-sync to nativeNodePackages (close #621)
• Redirect invalid *.json url

v119

• Fix named import of cjs (close #620)
• Use STABKE_VERSION for dts build of stableBuild
• Upgrade esbuild to 0.17.18

v118

• feat: Publish system (#607)
• esm-cjs-lexer: Support __export(require("...")) pattern (close #611)
• Add Auth middleware
• Upgrade stableBuild to v118
• Remove lit from stableBuild
• Fix submodule types (close #606)
• Fix arch for darwin arm64 (#617 by @JLugagne)

v117

• Fix Buffer polyfill for deno (close #574)
• Fix dts transformer with submodule (close #599)
• Fix importing .json as a module (close #601)
• Fix .wasm module importing (close #602)
• Fix path /v100/PKG/TARGET/index.js

v116

• Support modules/assets from Github repo (close #588)
• Update nativeNodePackages (close #591)
• Fix dep import url of cjs module (close #592)
• Add support of resolving typesVersions (close #593)
• Fix exports glob condition resloving (close #594)
• Remove shebang (close #596)
• Fix missed build version of dts files (close #589)

v115

• Return JavaScript modules for ?module query with wasm files
• Fix types transformer (close #581)
• Fix incorrect named import of cjs modules (close #583)
• Fix sumodule path resolving (close #584)
• Upgrade @types/node to 18

v114

• Add ?conditions query as esbuild option
• Use pnpm to install packages instead of yarn (save the server disk space & improve the build performance)
• Serve static files on local (#564 @Justinidlerz)
• Support .d.mts extension (close #580)
• Fix cjs transpiling (close #577)
• Fix types bulid (close #572, #576)
• Fix invalid type URL if submodule is main entry (#579 @marvinhagemeister)
• Upgrade esbuild to 0.17.14

v113

• express is working in Deno
• Fix lost non-mjs-extension module caused by v112 (close #559)
• Fix exports of netmask and xml2js (#561 @jcc10)
• Fix default import of deps for cjs (close #565, #566)

v112

• Use .mjs extension for the package main module to resolve subpath conflicts
• Ignore ?exports query when importing stable modules
• Fix npm naming regexp (close #541)
• Fix node buffer import for denonext target (closed #556)
• Fix tree shaking (close #521)
• Fix package nested conditions export (#546 by @Justinidlerz)
• Fix esm imports in cjs (close #557)
• Improve server performance (#543 by @Justinidlerz)
• Update requireModeAllowList (close #540, #548)

For Deno:

• Inject XHR polyfill for axios, cross-fetch, whatwg-fetch automatically
• CLI: Use user-specified indent size (#551 by @npg418)

v111

• Print package deprecated message
• Remove source map url of worker
• Fix package CSS redirects with target option
• Fix build dead-loop for edge cases
• Fix CLI update command (close #536)

v110

• Fix Content-Type header for dts files

v109

• Ignore ?external option for stable builds
• Fix react/jsx-runtime bundles react module
• Remove alias export resolving (close #530)

v108

• Add denonext target to use deno 1.31 node compatibility layer
• Redirect to css file for css packages

  https://esm.sh/normalize.css -> https://esm.sh/normalize.css/normalize.css

• Fix wasm packages can’t get the wasm file.

  import init, { transform } from "https://esm.sh/lightningcss-wasm";
  // before: you need to specify the wasm file path
  await init("https://esm.sh/lightningcss-wasm/lightningcss_node.wasm")
  // after: you don't need to specify it
  await init()

• Disable bundle mode for stable builds
• Fix alias export (close #527)
• Update references to reqOrigin to use cdnOrigin (#529 by @jaredcwhite)

v107

• Add ?cjs-export query (close #512)
  If you get an error like ...not provide an export named..., that means esm.sh can not resolve CJS exports of the module correctly. You can add ?cjs-exports=foo,bar query to specify the export names:

  import { NinetyRing, NinetyRingWithBg } from "https://esm.sh/react-svg-spinners@0.3.1?cjs-exports=NinetyRing,NinetyRingWithBg"

• Update requireModeAllowList (close #520)
• Remove ?sourcemap query, always generate source map as inline url.
• Default export all members from original module to prevent missing named exports members (#522)
• Only apply patch if types are missing in preact (#523)
• Upgrade esbuild to 0.17.10.
• Upgrade deno/std to 0.177.0

v106

• Just fix fake module export names resolving (close #510)

v105

• Check types which is not defined in package.json
• Fix empty module build (close #483)
• Fix exports field resolving (close #503)
• Fix deno cli script (close #505)
• Fix incorrect redirects (close #508)
• Fix invalid target with HeadlessChrome/ UA (close #509)
• Upgrade deno/std to 0.175.0

v104

• Rewrite FileSystem interface of the storage.
• Fix submodule build with exports in package.json (close #497)
• Fix es5-ext weird /#/ path (close #502)

v103

• Add inject argument for worker factory

  import workerFactory from "https://esm.sh/xxhash-wasm@1.0.2?worker";
  
  const workerInject = `
  self.onmessage = (e) => {
    // variable 'E' is the xxhash-wasm module default export
    E().then(hasher => {
      self.postMessage(hasher.h64ToString(e.data));
    })
  }
  `;
  
  const worker = workerFactory(workerInject);
  worker.onmessage = (e) => {
    console.log(e.data); // 502b0c5fc4a5704c
  };
  worker.postMessage("Hello");

• Respect ?external arg in bundle mode (close #498)
• Add require() syntax support for dts transformer
• Fix import maps scope is not correct by the CLI script (close #480)
• Fix basePath doesn’t take effect on redirects (close #481)
• Fix X-TypeScript-Types header not pined for stable builds
• Fix some bugs related to package path parsing (#487)
• Upgrade esbuild to 0.16.17
• Upgrade deno/std to 0.173.0

v102

• Support browser field of package.json to improve compatibility with npm packages in browser. For example, the webtorrent package will use memory-chunk-store instead of fs-chunk-store and exclude built-in modules like fs, net, os and so on.

  {
    "name": "webtorrent",
    "description": "Streaming torrent client",
    "version": "1.9.6",
    "browser": {
      "./lib/server.js": false,
      "./lib/conn-pool.js": false,
      "./lib/utp.js": false,
      "bittorrent-dht/client": false,
      "fs": false,
      "fs-chunk-store": "memory-chunk-store",
      "load-ip-set": false,
      "net": false,
      "os": false,
      "ut_pex": false
    },
  }

  (Close #450)

v101

• Fix ?bundle mode with illegal paths (close #476).
• Fix ?worker mode doesn’t support CORS.

v100

• Improve self-hosting configuration. check HOSTING.md for more details.
• Support browser field when it’s an es6 module (close #381).
• Purge headers from unpkg.com to avoid repeated Access-Control-Allow-Origin header (close #453).
• Fix content compression (close #460).
• Fix alias export (close #471).
• Fix cycle importing (close #464).
• Fix scenarios where module/es2015 are shims (maps).
• Fix worker cors issue.
• Upgrade esbuild to 0.16.10.
• Upgrade deno/std to 0.170.0.

v99

• Improve CDN cache performance, now you can get faster response time of .d.ts, .wasm and other static files.
• Remove ?deps purge (close #420)
• Remove ?export query of sub build task
• Upgrade deno/std to 0.165.0.

v98

• Add tree-shaking support for es modules

  import { __await, __rest } from "https://esm.sh/tslib" // 7.3KB
  import { __await, __rest } from "https://esm.sh/tslib?exports=__await,__rest" // 489B

• Add node-fetch polyfill for browsers and deno
• Restart ns process when got “unreachable” error (close #448)
• Fix exports resolver (close #422)
• cjs-lexer: Update swc to latest

v97

• Add https://esm.sh/build-target endpoint to return the build target of current browser/runtime by checking User-Agent header.
• Support --npm-token option to support private packages (#435).
• Update polyfills/node_process: replace timeout with queueMicrotask (#444).
• Upgrade deno/std to 0.162.0.

v96

• Update the fake node fs ployfill for browsers(add createReadStream and createWriteStream methods)
• Check package name (close #424)
• Fix some invalid types bulids
• Upgrade esbuild to 0.15.9

v95

• Fix web-streams-ponyfill build (close #417)
• Fix invalid ?deps and ?alias resolving
• Fix solid-js/web build for Deno
• Add add react:preact/compat pattern for the deno CLI

v94

• Downgrade deno/std to 0.153.0.

v93

• Fix @types/react version (close #331)
• Fix cjs __esModule resolving (close #410)
• Fix postcss-selector-parser cjs exports (close #411)
• Fix solid-js/web of deno target
• Upgrade deno/std to 0.154.0

v92

• Add stable channel for UI libraries like react, to avoid multiple copies of runtime by cache

  https://esm.sh/v92/react@18.2.0/deno/react.js -> https://esm.sh/stable/react@18.2.0/deno/react.js

• Respect external all arg in types build
• Upgrade deno/std to 0.152.0

v91

• Improved Deno CLI Script:

  deno run -A https://esm.sh/v91 init

  After initializing, you can use the deno task npm:[add/update/remove] commands to manage the npm packages in the import maps.

  deno task npm:add react react-dom # add packages
  deno task npm:add react@17 react-dom@17 # add packages with specified version
  deno task npm:update react react-dom # upgrade packages
  deno task npm:update # update all packages
  deno task npm:remove react react-dom # remove packages

• Respect imports of package.json (close #400)
• Update npmNaming range (close #401)

v90

• Experimentally add Deno CLI mode, it will update the import_map.json file in the working directory:

  deno install -A -n esm -f https://esm.sh
  esm add react react-dom # add packages
  esm add react@17 react-dom@17 # add packages with specified version
  esm upgrade react react-dom # upgrade packages
  esm upgrade # upgrade all packages
  esm remove react react-dom # remove packages

  Ensure to point the import_map.json in your deno run command or the deno.json file.

• Support /v89/*some-package@version external all pattern, do NOT use directly, use the CLI mode instead.
• Redirect urls with /@types/ to the .d.ts file instead of build
• Improve node service stability
• Fix cjs __exportStar not used (close #389)
• Fix resolve package (close #392)
• Add workaround for prisma build
• Upgrade deno std to 0.151.0

v89

• support ?deno-std=$VER to specify the deno std version for deno node polyfills
• fix missed __esModule export

v88

• Respect exports.development conditions in package.json (close #375)
• Fix solid-js/web?target=deno strip ssr functions
• Fix @types/node types transforming (close #363)
• Fix ?external doesn’t support .dts files (close #374)
• Fix invalid export names of keycode, vscode-oniguruma & lru_map (close #362, #369)
• Fix esm resolving before build (close #377)

v87

• Support ?external query, this will give you better user experience when you are using import maps.

  // import_map.json
  {
    "imports": {
      "preact": "https://esm.sh/preact@10.7.2",
      "preact-render-to-string": "https://esm.sh/preact-render-to-string@5.2.0?external=preact",
    }
  }

• Support ?no-dts (equals to ?no-check) query
• Add the ‘ignore-annotations’ option for esbuild (#349)
• Prevent submodules bundling their local dependencies (#354)
• Don’t panic in Opera

v86

• Support ?keep-names query for esbuild (close #345)

v85

• Fix fixAliasDeps function that imports multiple React when using ?deps=react@18,react-dom@18

v84

• Fix types version resolving with ?deps query(close #338)
• Fix URL redirect with outdated build version prefix

v83

• Replace node-fetch dep to node-fetch-native (close #336)
• Add --keep-names option for esbuild by default (close #335)
• Fix incorrect types with ?alias query

v82

• fix types with ?deps query (close #333)

v81

• fix ?deps and ?alias depth query

v80

• Fix build error in v79

v79

• Use esm.sh instead of cdn.esm.sh
• User semver versioning for the x-typescript-types header
• Fix aliasing dependencies doesn’t affect typescript declaration (close #102)
• Fix using arguments in arrow function #322
• Fix Deno check precluding esm.sh to start #327

v78

• Reduce database store structure
• Fix missed renderToReadableStream export of react/server in deno
• Fix fetchPackageInfo dead loop (close #301)
• Upgrade esbuild to 0.14.36

v77

• Use the latest version of deno/std/node from cdn.deno.land automatically
• Add es2022 target
• Upgrade esbuild to 0.14.34

v76

• Fix ?deps mode

v75

• Fix types build version ignore ?pin (close #292)
• Infect ?deps and ?alias to dependencies (close #235)
• Bundle ?worker by default
• Upgrade semver to v3 (close #297)
• Upgrade esbuild to 0.14.31
• Upgrade deno std to 0.133.0 (close #298)

v74

• Support ?no-require flag, with this option you can ignore the require(...) call in ESM packages. To support logic like below:

  // index.mjs
  
  let depMod;
  try {
    depMod = await import("/path")
  } finally {
    // `?no-require` will skip next line when resolving
    depMod = require("/path")
  }

v73

• Fix types dependency path (close #287)

v72

• Support jsx-runtime with query: https://esm.sh/react?pin=v72/jsx-runtime -> https://esm.sh/react/jsx-runtime?pin=v72
• Support pure types package (close #284)

v71

• Fix version resolving of dts transformer (close #274)

v70

• Return bare code when target and pin provided to reduce requests

  // https://esm.sh/react@17.0.2
  export * from "https://cdn.esm.sh/v69/react@17.0.2/es2021/react.js";

  // https://esm.sh/react@17.0.2?target=es2020&pin=v70
  {content just from https://cdn.esm.sh/v69/react@17.0.2/es2021/react.js}

• Rollback parseCJSModuleExports function to v68 (close #277, #279)
• Fix exports resolving in package.json (close #278, #280)
• Upgrade deno std/node to 0.130.0

v69

• Force the dependency version of react equals to react-dom’s version

  before: react-dom@18-rc.2 -> react@18-rc.2-next.xxxx
  now: react-dom@18-rc.2 -> react@18-rc.2

• Fix version check for prerelease (can’t resolve react in react-dom@rc)
• Improve cjs module transform (can handle more edge cases, for example react-18-rc defines non-esm for browsers and deno)

v68

• Fix bundle mode (close #271)
• Support jsnext:main in package.json (close #272)
• Improve cjs-esm-exports to support UMD format

  // exports: ['foo']
  const { exports } = parse('index.cjs', `
    (function (global, factory) {
      typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
      typeof define === 'function' && define.amd ? define(['exports'], factory) :
      (factory((global.MMDParser = global.MMDParser || {})));
    }(this, function (exports) {
      exports.foo = "bar";
    }))
  `);

• Upgrade deno node polyfill to 0.128.0

v67

• Force react/jsx-dev-runtime and react-refresh into dev mode
• Replace typeof window !== undefined to typeof document !== undefined for deno target
• Replace object-assign with Object.assign
• Upgrade esbuild to 0.14.25

v66

• Improve exports resloving of package.json (close #179)

v65

• Feature: Support ?path query to specify the submodule, this is friendly for import maps with options (close #260)

  // import-map.json
  {
    imports: {
      "react-dom/": "https://esm.sh/react-dom?target=es2015&path=/"
    }
  }

  // equals to https://esm.sh/react-dom/server?target=es2015
  import { renderToString } from "react-dom/server"

• Upgrade deno.land/std/node polyfill to 0.125.0
• Upgrade esbuild to v0.14.18
• bugfixs for #251, #256, #261,#262

v64

• Fix Node.js process compatibility (close #253)
• Upgrade deno.land/std/node polyfill to 0.122.0

v63

• Add fs polyfill(fake) for browsers (close #250)
• Upgrade deno.land/std/node polyfill to 0.121.0

v62

• bugfixs for #240, #242, #248

v61

• Support React new JSX transforms in Deno(1.16+) (close #225)

v60

• bugfixs for #244, #245, #246

v59

• improve cjs-esm-exports to support some edge cases:

    var foo = exports.foo || (exports.foo = {});
    ((bar) => { ... })(exports.bar || (exports.bar = {}));

• Fix @types verisoning:
  • marked -> @types/marked@4.0.1
  • marked@2 -> @types/marked@2.0.5
  • marked?dep=@types/marked@4.0.0 -> @types/marked@4.0.0
• Upgrade deno.land/std/node polyfill to 0.119.0
• Upgrade esbuild to v0.14.8

v58

• Recover the stable queue
• Filter invalid pathnames like /wp-admin/login.php
• Fix ?pin mode when build failed (close #206)

v57

• Add ?pin mode
• Improve build stability
• Fix marked@4 import
• Fix invalid types hangs forever (close #201)

v56

• cjs-esm-exports supports tslib __exportStar (close #197)
• Improve node perf_hooks polyfill
• Fix redeclared process polyfill (close #195)
• Fix ?worker mode on deno (#198)
• Add he to cjs-esm-exports require mode allow list (close #200)
• Fix package css redirect link
• Upgrade esbuild to v0.13.12

v55

• Add playground to write esm app online, try it on https://esm.sh?playground
• Add a better cjs exports parser: cjs-esm-exports
• Support web worker

  import editorWorker from '/monaco-editor/esm/vs/editor/editor.worker?worker'
  
    const worker = new editorWorker()

• Add queue interface
• Support dataurl, .wasm import
• Import deno polyfills from https://deno.land/std@0.113.0/node
• Fix package CSS

v54

• Update deno polyfills from 0.106.0 to 0.110.0 (#190)
• Add deno module polyfill (#164)
• Fix (storage/fs_local) file path portability bug (#158)

v53

• Add Cache-Tag header for CDN purge
• Add s3 storage support (#153)
• Fix require replacement (#154)

v52

• Fix types build (#149)
• Use stream and events from deno std/node (#136) @talentlessguy
• Fix localLRU and allow for memoryLRU (#148) @jimisaacs

v51

• Fix build breaking change in v50 (#131).
• Add localLRU FS layer (#126)
• Add a Cache Interface that is using to store temporary data like npm packages info.
• Do not try to build /favicon.ico (#132)
• Add lovely pixi.js, three.js and @material-ui/core testing by @jimisaacs (#134, #139).

v50

• Improve build performance to burn the server CPU cores! Before this, to build a module to ESM which has heavy deps maybe very slow since the single build task only uses one CPU core.
• Rewrite the dts transformer to get better deno types compatibility and faster transpile speed.
• Add Deno testing CI on Github.

v49

• Improve the build process to fix an edge case reported in #118

  const Parser = require('htmlparser').Parser;

  esm (v48) output:

  import htmlparser2 from '/v48/htmlparser2@5.0.0/es2021/htmlparser2.js'
  const Parser = htmlparser2.Parser; // parser is undefined

  the expected output was fixed in v49:

  import { Parser as htmlparser2Parser } from '/v48/htmlparser2@5.0.0/es2021/htmlparser2.js'
  const Parser = htmlparser2Parser; // parser is a class

• Add more polyfills for Deno, huge thanks to @talentlessguy (#117)
  • path
  • querystring
  • url
  • timers
• Better self-hosting options improved by @jimisaacs, super! (#116, #119, #120, #122)
• Add Unlimted(max 1PB) Storage to store builds and cache via NFS on esm.sh back server behind Cloudflare

v48

• Improve cjs-lexer service to handle the edge case is shown below:

  function debounce() {};
  debounce.debounce = debounce;
  module.exports = debounce;

  esm output:

  export { debounce } // this was missed
  export default debounce

• Ignore ?target in Deno (fix #109)
• Add Storage Interface to store data to anywhere (currently only support postdb + local FS)

v47

• Improve dts transformer to use cdn domain (fix #104)
• Update polyfills (fix #105)

v46

• Split modules based on exports defines (ref #78)
• Add cache-folder config for yarn add
• Improve resolveVersion to support format 4.x (fix #93)
• Import initESM to support bare exports in package.json (fix #97)
• Bundle mode should respect the extra external (fix #98)
• Support node:path importing (fix #100)
• Pass ?alias and ?deps to deps (fix #101)
• Improve cjs-lexer sever (fix #103)
• Upgrade rex to 1.4.1
• Upgrade esbuild to 0.12.24

V45

• Improve build performance
• Filter cjs-moudle-lexer server invalid exports output
• Improve resolveVersion function to support format like 4.x (fix #93)
• Improve dts transform (fix #95)

V44

• Add Alias feature (#89)

  import useSWR from 'https://esm.sh/swr?alias=react:preact/compat'

  in combination with ?deps:

  import useSWR from 'https://esm.sh/swr?alias=react:preact/compat&deps=preact@10.5.14'

  The origin idea was came from @lucacasonato.
• Add node build target (#84)
• Check exports field to get entry point in package.json
• Run cjs-lexer as a server
• Upgrade esbuild to 0.11.18 with es2021 build target
• Bugfixs for #90, #85, #83, #77, #65, #48, #41.

V43

• Add /status.json api
• Use previous build instead of waiting/404 (fix #74)
• Fix deps query (#71)

V42

• Add __esModule reserved word
• Align require change for esbuild 0.12
• Fix setImmediate polyfill args (#75)
• Upgrade esbuild to 0.11.12

V41

• Add timeout (30 seconds) for new build request, or use previous build version instead if it exists
• Fix bundle mode
• Fix build dead loop
• Upgrade esbuild to 0.11.12

V40

• Update polyfills for node builtin modules
• Upgrade esbuild to 0.11.9

V39

• Imporve parseCJSModuleExports to support json module
• Pass NODE_ENV to parseCJSModuleExports
• Update node buffer polyfill
• Upgrade postdb to v0.6.2

V38

• Fix build for packages with module type (#48)
• Improve parseCJSModuleExports function (use cjs-module-lexer and nodejs eval both to parse cjs exports, and ignore JSON module)
• Pass NODE_ENV to parseCJSModuleExports function
• Upgrade esbuild to 0.11.6

V37

• Add bundle mode
• Fix module exports parsing

V36

• Fix esm build for some edge cases
• Add simple test (thanks @zhoukekestar)
• Upgrade esbuild to 0.11.5

V35

• Set build target by the user-agent of browser automaticlly

V34

• Remove bundle mode · Breaking
• Add build queue instead of mutex lock
• Use AST(cjs-module-lexer) to parse cjs exports
• Add a testing page at https://esm.sh?test
• Fix __setImmediate$ is not defined
• Support exports define in package.json
• Support mjs extension
• Improve NpmPackage resolve (fix #41)
• Upgrade esbuild to 0.11.4
• Upgrade rex to 1.3.0