Changelog

v136(Unreleased)

Add two builtin registries:

jsr - The open-source package registry for modern JavaScript and TypeScript, created by the Deno team. (32cd2bd)

// example
import { encodeBase64 } from "https://esm.sh/jsr/@std/encoding@1.0.0/base64";
import { Hono } from "https://esm.sh/jsr/@hono/hono@4";

pkg.pr.new - Continuous (Preview) Releases for your libraries, created by StackBlitz Labs (#904, #913)

// Examples
import { Bench } from "https://esm.sh/pr/tinylibs/tinybench/tinybench@a832a55";
import { Bench } from "https://esm.sh/pr/tinybench@a832a55"; // --compact

Respect semantic versioning for dependency resolving (#875)

Previously, dependency resolution used fixed versions, which could cause duplication issues when packages were updated. Starting from v136, we now follow semantic versioning for dependencies.
```
// before
"react-dom@19.0.0" import "/react@19.0.0/es2022/react.mjs";
// after
"react-dom@19.0.0" import "/react@^19.0.0?target=es2022";
```
Add built-in npm package manager (#948)

Implement a built-in npm package manager in Go to replace pnpm. This change reduces the CI test time from 12:15 to 4:30 (~2.7x faster) and eliminates the need for nodejs and pnpm dependencies.
Split modules by analyzing the dependency tree during the build process (#959)

To improve build performance and reduce network requests, esm.sh bundles sub-modules of a package by default. However, this can lead to duplicate code in the build. In v136, the server will split the modules by analyzing the dependency tree during the build process if the package's exports field is defined.
Use @pi0's unenv as the node runtime compatibility layer (#914)

unenv provides a collection of Node.js and Web polyfills and mocking utilities with configurable presets for converting JavaScript code and libraries to be platform and runtime agnostic, working in any environment including Browsers, Workers, Node.js, Cloudflare Workers, Deno. unenv is also used by CloudFlare Workers: blog.

You can also access these unenv node runtime modules directly via /node/[node-builtin-module-name].mjs path, for example:
```
import * from "https://esm.sh/node/fs.mjs";
```
Add npm-replacements that follows e18e's module-replacements. (#914)

The npm-replacements package replaces certain polyfill packages on NPM with native modern APIs during the build process. For example, the object-assign package is replaced with Object.assign:
```
import assign from "object-assign"; // replaced with "const assign = Object.assign"
```
Remove build version prefix from the module path

The build version prefix of esm.sh was introduced to avoid potential breaking changes caused by updates to the esm.sh server. However, it can lead to duplication issues when updating the server. In v136, we have removed the build version prefix from the module path, and the ?pin query will be ignored. Paths with the build version prefix will continue to work as before, but the new default will be paths without the build version prefix.
```
// before
"react@19.0.0" -> "https://esm.sh/v135/react@19.0.0/es2022/react.mjs";
// after
"react@19.0.0" -> "https://esm.sh/react@19.0.0/es2022/react.mjs";
```

Deprecate the build API

import { build } from "https://esm.sh/build";
build() // throws Error: The build API has been deprecated.

Deprecate the Deno CLI script

Deno now includes its own built-in package manager, which can be used to manage jsr: nad npm: imports in your deno applications. So we decided to deprecate the Deno CLI script.
```
# use
deno add npm:pract jsr:@std/encoding
Add npm:preact@10.25.4
Add jsr:@std/encoding@1.0.6

# do not use
deno run -A -r https://esm.sh init
error: The deno CLI has been deprecated.
```
Add npmScopedRegistries config

The npmScopedRegistries configuration enables you to define the registry, token, user, and password for scoped npm packages. This allows you to import scoped packages using URLs like https://your-esm-server.com/@scope_name/pkg@version.
```
{
  "npmScopedRegistries": {
    "@scope_name": {
      "registry": "https://your-registry.com/",
      "token": "xxxxxx",
      "user": "",
      "password": ""
    }
  }
}
```
Experimental Features:
- Build .vue and .svelte files on the fly (#906)
```
import "https://esm.sh/gh/phosphor-icons/vue@v2.2.0/src/icons/PhAirplay.vue?deps=vue@3.5.8"
```
- https://esm.sh/x - ts/jsx/vue/svelte just works™️ in browser. (#886)
Other Changes:
- Upgrade esbuild to 0.24.2
- Use native cjs-module-lexer@v1.0.7
- Use target es2022 for browsers by default (#903)
- Replace window with globalThis to make Deno 2 happy (#964)
- Use .mjs extenstion for sub-module build (#917)
- dts-transformer: support .d extension
- config: Add corsAllowOrigins config
- config: Add customLandingPage config (#928)
- config: Add npmQueryCacheTTL config (#921)
- config: Add npmQueryCacheTTL config (#921)
- config: Support S3-compatible storage (#886)

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

Files

CHANGELOG.md

Latest commit

History