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comparisons compression option in uglifyjs webpack prod config breaks on react-mapbox-gl #2376

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davidascher opened this issue May 26, 2017 · 19 comments

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@davidascher
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davidascher commented May 26, 2017

Can you reproduce the problem with latest npm?

Yes (including npm 5).

Description

There seems to be an incompatibility between CRA 1.0+ and the react-mapbox-gl component. This bug was not present before CRA 1.0, and only shows up in production mode, which makes me think it's a webpack 2.0 related issue.

Expected behavior

See https://github.com/davidascher/mapbox-repro-bug for a minimal test case (single component render -- works in development mode, doesn't work in production mode)

Actual behavior

In production mode (yarn build + serve -s build) , the map doesn't show and there's an incomprehensible traceback (as it's minified).

Environment

Run these commands in the project folder and fill in their results:

  1. npm ls react-scripts (if you haven’t ejected): react-scripts@1.0.6
  2. node -v: v7.9.0
  3. npm -v: 5.0.0 (but it happened with 4.x as well)

Then, specify:

  1. Operating system: OSX
  2. Browser and version: Chrome 58.0.3029.110

Reproducible Demo

Source: https://github.com/davidascher/mapbox-repro-bug

(trivial CRA repo with one dependency).

Live site showing bug: https://build-wnyrhmqiph.now.sh/

/cc @alex3165 as he is the maintainer of react-mapbox-gl AFAICT.

@davidascher
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Aside: confirmed with the repo above that downgrading to react-scripts 0.9.5 fixes the problem.

@davidascher
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Confirmed that if I eject, and change the build step to use the webpack.config.dev config, the bug goes away.

@davidascher
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davidascher commented May 26, 2017

If I eject and simply comment out the UglifyJsPlugin from the plugins list in the production config, the bug goes away. Live site showing this: https://build-ijvjggnled.now.sh/

@davidascher
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With @kzc's help, this has been traced it down to an uglify option (see mishoo/UglifyJS#2011 (comment)).

Setting

   compress: {
        comparisons: false
   }

in the webpack prod config for the UglifyJS plugin fixes the problem.

I'll see if I can figure out how to override the webpack configs, I vaguely remember a bug going by about that new capability.

@davidascher davidascher changed the title Something about the build phase in 1.0+ breaks react-mapbox-gl comparisons compression option in uglifyjs webpack prod config breaks on react-mapbox-gl May 27, 2017
@gaearon
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gaearon commented May 27, 2017

Want to send a PR disabling that option?

@davidascher
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davidascher commented May 27, 2017 via email

davidascher added a commit to davidascher/create-react-app that referenced this issue May 27, 2017
gaearon pushed a commit that referenced this issue May 27, 2017
* Disable a micro-option in uglify that appears to be buggy

See #2376

* wrong plugin

* Add a comment
@gaearon
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gaearon commented May 27, 2017

Please let us know if Uglify fixes this!

@davidascher
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@gaearon Uglify won't fix this it seems, as the root cause seems to be in webworkify doing something not kosher / out of scope.

See tail end of the uglify thread: mishoo/UglifyJS#2011 (comment)

And webworkify bug: browserify/webworkify#35

@gaearon
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gaearon commented May 27, 2017

I see. If it's not a bug we'll likely reenable the optimization in the future.

@davidascher
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I don't personally yet understand where the actual bug lies. It's possible that webworkify's Blob-creation code can be fixed to not break uglify, we'll see what the webworkify maintainers say.

I understand that the uglifyjs maintainers need to define a scope and can be strict about it. From a CRA point of view, reenabling the optimization means from the user's PoV code that works in dev mode doesn't work in production and it's hard to understand & track down the root cause. I would recommend against re-enabling it until we understand a workaround other than ejecting. webworkify seems to have a bunch of usage: https://www.npmjs.com/package/webworkify. Certainly all mapbox + CRA users would feel it.

On my minimal test case (including react, react-mapbox-gl, mapbox-gl), the difference between the created JS using webpack.prod.js between 1.0.6 and 1.0.7 is:

1.0.6: 668579 bytes
1.0.7: 669116 bytes

So for this case anyway the choice is to save 537 bytes (0.08% of JS bloat) and have a production build that works, or the other way around.

@kzc
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kzc commented May 27, 2017

webworkify is not the problem. The function in the package being stringified by webworkify is violating an assumption uglify makes about static code analysis - that the variable in question is defined in an outer scope. Of course that package in question would work correctly if not uglified - it has a different set of assumptions and clearly was not written with minification in mind. It's not correct to call it a bug in that package either - it's a confluence of factors. Can the code that makes use of webworkify be changed to work whether uglified or not? Quite possibly. If not, the end developer would have to disable uglify comparisons.

@davidascher
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Ah, thanks for that explanation, @kzc. I'll see if I can figure out what that code is.

@davidascher
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There seems to be a mapbox-gl-js issue on this topic: mapbox/mapbox-gl-js#4359

@jfirebaugh
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It's a confluence of factors:

  • A module used by mapbox-gl-js has code that checks for the presence of global using typeof global !== "undefined". At the point where global is used, there's no outer context in which a variable global is defined.
  • webworkify stringifies functions to send to the worker. This is risky, but is the only known solution for bundling worker code that:
    • Doesn't require loading a second source file from the server
    • Doesn't duplicate code that's used in both worker and main thread
  • Something in create-react-app setup wraps mapbox-gl-js in function (global) { ... }.
  • Uglify decides to mangle the resulting global and transform the resulting typeof g !== "undefined" to void 0 !== g. Together, this produces broken code when the stringified function is executed outside of the function (g) { ... } wrapper.

Because of this confluence, it's likely to be one of those situations where the maintainers of each of the individual components involved insist that what their code does is perfectly valid, and it's the other stuff that's making invalid assumptions and must be fixed. At the risk of doing so myself, I would say the bug is in webpack: it provides no mechanism for a package to indicate what its build/packaging/bundling requirements are. If we, the authors of mapbox-gl-js, could put something in package.json indicating "don't mess with this code, it's already been bundled and minified in the way that it needs to be; redundant wrapping, bundling, and mangling is likely to break it", then issues like this wouldn't keep cropping up.

@kzc
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kzc commented May 29, 2017

I'm not a user of mapbox-gl-js, but here's a couple of possible workarounds to avoid the use of global...

These are the contentious globals in question browserify'd by mapbox-gl-js:

var Buffer = global.Buffer || require('./buffer');

https://github.com/mapbox/pbf/blob/v1.3.7/index.js#L5

That can be solved by upgrading pbf to the latest version which does not use global.

And util.deprecate which no one cares about in the context of mapbox-gl-js:

exports.deprecate = function(fn, msg) {
  // Allow for deprecating things in the process of starting up.
  if (isUndefined(global.process)) {

https://github.com/defunctzombie/node-util/blob/b5d10a26402c3b60ce496e675a13c58bbed47801/util.js#L67

That can be solved by making a fork of util@0.10.3 to remove that function.

Perhaps util.deprecate can be retained but simply remove this code:

https://github.com/defunctzombie/node-util/blob/b5d10a26402c3b60ce496e675a13c58bbed47801/util.js#L66-L71

Alternatively, if browserify (or is it webpack?) can be modified to change the order of conditions in the following generated code to check for window first and global last it may also work:

typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}

I don't know where that code is.

@jliebrand
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Hey guys; I'm a little confused: this bug (and the mapbox-gl linked bug) are both "closed" but the problem still persists, right? And the disable micro-option doesn't seem to have been pulled in (yet? is the plan to pull that in for now?)...

Just trying to understand how to workaround this issue / when/what the real fix is (going to be)

rrdelaney pushed a commit to rrdelaney/reason-scripts that referenced this issue Jun 6, 2017
* Disable a micro-option in uglify that appears to be buggy

See facebook/create-react-app#2376

* wrong plugin

* Add a comment
@pushred
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pushred commented Jun 9, 2017

romaindso pushed a commit to romaindso/create-react-app that referenced this issue Jul 10, 2017
…book#2379)

* Disable a micro-option in uglify that appears to be buggy

See facebook#2376

* wrong plugin

* Add a comment
iamlacroix added a commit to trunkclub/tcweb-build that referenced this issue Aug 2, 2017
* Bust AppVeoyr cache

* Relax ESLint config peerDependency (facebook#1740)

* Fix internal linting setup and add missing headers (facebook#1741)

* Fix eject for linked react-scripts (facebook#1736)

* fix eject for linked react-scripts

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* Add changelog for 0.9.4

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* Adjust changelog wording

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* Switch to preset-env
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* Bump babel-core to match babel preset versions

* Add uglify to targets

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* Add ability to toggle internal calls

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* Change UI to be friendlier (thanks @nicinabox)
facebook#1101 (comment)
facebook#1101 (comment)

* Update styles

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* Extract ansiHTML

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* Linting

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* Target exact version

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* Fix a bug where omitted frames would never be rendered
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* Show local file path instead of confusing webpack://

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* Fix title regression

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* Remove unnecessary rules from container style

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* Fix font family in pre > code

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* Add ability to see script source

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* Remove SIAF

* Skip native functions

* Extract hints div function

* Extract renderers

* Refacor var names

* If source is disabled, don't use the line.

* Allow toggle between source

* Allow bundles to be expanded

* Wow, how did I let this one slip?

* Toggle text for UX/DX

* Make it so clicking Close unmounts the error component

* Do not allow hot reloading once an error is thrown

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* Fix toggle when additional errors happen

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* Switch to a view-by-index method

* Allow user to switch between errors with arrow keys

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Part of issue facebook#1293.

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* Pretty newline added

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* Cute newline added

* Style nits

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Iterating over an object's keys using `for/in` is idiomatic and it's safe (in all modern browsers) to not check hasOwnProperty as long as the object is a plain object. Can we remove this lint rule?

* Run CI on Node 7; Bump detect-port: 1.0.1 -> 1.1.0 (facebook#1776) (facebook#1783)

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* Bump detect-port: 1.0.1 -> 1.1.0

* Run AppVeyor CI on Node 7

* Add 0.9.5 changelog (facebook#1784)

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* docs(babel-preset): Update comment info about babel-preset-env. (facebook#1787)

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* Tweak wording

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* Fix for issue facebook#1798: Suggested 'yarn build' versus 'yarn run build'

* remove 'run' from 'yarn test' command as well

* conditionally show 'run' if Yarn is not available

* Tweak the wording

* Fixes a silent crash when ejecting (facebook#1810)

* Fixes a silent crash when ejecting

* Delete unnecessary files

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* Link to CRNA

* Make scripts crash on unhandled rejections (facebook#1819)

* Makes end-to-end testing crash on unhandled rejections

* Comment fix

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* User Guide: Removed blockquote from code section, due to markdown conflict (facebook#1869)

* Removed blockquote from code section

* Fix the fix

* Fix AppVeyor CI (facebook#1876)

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commander to figure it out on its own

* Fix responsive behavior in iOS 9+ (facebook#1821)

* Adding shrink-to-fit=no for proper responsive handling on Safari 9+

* Check internet connectivity with lookup instead of resolve (facebook#1863)

Resolves facebook#1818

* Update `detect-port` (facebook#1861)

Previous changes caused `detect-port` to pick random port on app startup. Update fixes this regression, `detect-port` pick next available port instead.

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* Update webpack.config.dev.js

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* Fix AppVeyor CI (facebook#1868)

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* Duplicate CLI file warning header

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* yarn & npm

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* Note that only jest-enzyme@2.x is compatible

* Add sku to the list of alternatives (facebook#1962)

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Pass the host from environment variable as argument of the devServer's
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* Add folder structure docs for new contributors (facebook#1991)

* Adding folder structure to help people navigate through project. It helps in resolving issues by providing brief description of each package and its purpose

* Removing unnecessary packages from Folder structure heading

* Update CONTRIBUTING.md

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* Node.js serving with absolute path

It’s safer to use the absolute path of the directory that you want to serve, in case you run the express app from another directory.

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JSDoc-style comments weren't being removed

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* Update README.md

* Turn off CSS source maps

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* Do not break words

* Disable warning overlay

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* Fix Netlify heading level. (facebook#2033)

* Use prop-types package (facebook#2029)

* Update README.md (facebook#2040)

* Define dev chunk names (facebook#2050)

* Define dev chunk names

Fixes facebook#2046

* Add comment

* Suggest to create .eslintrc for IDE lint plugins (facebook#2054)

* Suggest to create .eslintrc for IDE lint plugins

* Update README.md

* Update README.md

* Update README.md (facebook#2058)

* Update README.md

* Update README.md

* Fix instructions for serving with now (facebook#2052)

* Fix instructions for serving with now

Not sure if new, but the `--single` flag is now important.

* Keep it shorter

* Temporarily pin Yarn to fix CI

* Fixed documentation link for storybook in README.md (facebook#2081)

* Forbid using window properties as global variables (facebook#1840)

* Forbid using window properties as global variables

* Change globals list to match Standard.

* Fix globals

* Ignore the yarn cache directory (facebook#2063)

* Revert "Forbid using window properties as global variables" (facebook#2099)

* Revert "Ignore the yarn cache directory (facebook#2063)"

This reverts commit 94149c7.

* Revert "Forbid using window properties as global variables (facebook#1840)"

This reverts commit 5a7d8e8.

* Minor tweaks for crash overlay (facebook#2101)

* Bump minimal Node version to 6 (facebook#1897)

* Bump minimal Node version to 4.7.0

* Bump minimal Node version to 4.7.0

Modified additional files that needed a bump to 4.7.0 minimum node version

* Bump minimal Node version to 4.7.0

Reverse changes to packages/create-react-app/index.js as this file needs to continue to work on Node 0.10+

* Bump minimal node version to 6

* Bump minimal node version to 6

* Bump minimal node version to 6

* Prettify errors and warnings for Webpack 2 (facebook#2113)

* Prettify errors and warnings for Webpack 2

* Update formatWebpackMessages.js

* Do not parse `.eslintignore` (facebook#2115)

* Add `react-error-overlay` package (facebook#2111)

* ༼ つ ◕_◕ ༽つ stack-frame-overlay

* Fix linting

* Remove auto overlay

* Fix e2e

* Pull in the rest

* Appease flow

* Correct dep

* Remove old repo references

* Check flow on test

* Test overlay in e2e

* Add cross env

* Rename package

* Make sure it gets built post-install

* Update the README

* Remove extra builds now that there's a postinstall script

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This reverts commit 8bf601d.

* Remove broken script

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* Default to 0.0.0.0 (facebook#2117)

* Omit ESLint warnings when there are ESLint errors (facebook#2120)

* Adds tests for the overlay (facebook#2118)

* Add get-source-map tests

* Fixtures shouldn't be formatted

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* Switch to snapshots

* Snapshot more

* disable ignoring unused vars prefixed with _ (facebook#1763)

* Bump React in development (facebook#2122)

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* Only show first error (facebook#2125)

* Fix a bad condition

facebook#2123 (comment)

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* update readme with fix from facebook#1939

* update with better globbing

* added note

* updating with a note and reverting previous changes

* how about this?

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* added note about new files back in after verifying locally

* spaces back in, sorry was my editor!

* removed note about new files :)

* added bullet about new files issue currently open on node-sass

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* support different env configs.

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* Remove .env in default template
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* Oops, forgot these folks

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* Add note about yarn.lock in CONTRIBUTING.md

* Update CONTRIBUTING.md

* Update README.md (facebook#2137)

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* Browser sort is not stable

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* Click to view source

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* Fix lint

* Work around weird inferred name in Chrome

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* Don't collapse unintentional top-level errors

* Linkify internal stack frames too

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Closes facebook#2127

* Blacklist confusing global variables (facebook#2130)

* Blacklist confusing global variables

* Blacklist globals

* Fix kitchensink test to lint

* Edit the list

* Use no-restricted globals for this

* Temporarily fork detect-port (facebook#2147)

* Temporarily fork detect-port

* Fix get process id

* Use different package

* Unnecessary var

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* Print error messages for editor integration (facebook#2150)

* Add custom eslint formatter (facebook#2138)

* Add custom eslint formatter

* Add formatter docs

* Update formatter docs

* Slightly tweak it

* Update README.md

* Fix CI

* Tweak error and warning output (facebook#2152)

* Tweak error and warning output

* Add a colon

* Focus on line in eslint messages

* Fix CI

* [Internal] Warn for missing brackets (facebook#2151)

* Warn for missing braces

* Overlay, too

* Allow custom proxies in development (facebook#1790)

* Change proxy handling to allow multiple proxies to be specified in package.json.

* Up webpack-dev-server to 2.4.2

Webpack Dev Server version 2.4.2 handles the external websocket upgrade
for all proxies

* Fix the listen() call

* Switch to correct default host

* Remove promises and extract to react-dev-utils

* oops

* Add support for IPv6 hosts

* Prefer localhost as an address (facebook#2154)

* Show network address on start (facebook#2155)

* Show network address on start

* Tweak visual representation

* Bump webpack packages

* Internal Webpack paths should not be clickable

* Make error/warning output more useful (facebook#2161)

* Fix lint

* Fix CI

* Update to Jest 19 (facebook#1614)

* Upgrade to Jest 19

* Use testMatch

* Correct version

* Put console.stack() behind a react vendor prefix (facebook#2164)

Matches what we did in facebook/react#9679

* Unpin Yarn (facebook#2124)

* Unpin Yarn

* Try 0.24.2

* Update e2e-simple.sh

* ESLint Config: Upgrade eslint-plugin-jsx-a11y and activate more rules. (facebook#2163)

* ESLint Config: Upgrade eslint-plugin-jsx-a11y and activate more rules.

* Try to fix Lerna

* Update README.md

* Remove html-has-lang

* Update README.md

* Removing extra `eslint` rules (facebook#2064)

Removing a stylistic lint rule

* Support hoisting react-scripts and add require.resolve() to loaders (facebook#2166)

* Support hoisting react-scripts

* require.resolve() loaders and configs

This makes it so that loaders and configs are resolved relative to the config rather than to the app. This seems to make more sense to me.

* Support node scripts in BROWSER (facebook#1590)

* Support node scripts in BROWSER

Modify OpenBrowser.js to run node scripts specified with the BROWSER environment
variable . If the value of the BROWSER environment variable ends with '.js' a
child process is spawned to execute the script with node.js. Any
arguments passed to npm start are also passed to this script, as well as
the url where the app is served.
The command executed in the child process is:

node <pathToScript> [OPTIONS] <url>

Update User Guide.

* Tweak code style

* Pin dep

* Comment out 0.10 docs

* Enable CSS sourcemaps in production (facebook#2168)

* Adding plugin postcss-flexbugs-fixes and flexbox: 'no-2009' to Autoprefixer (facebook#1771)

* Adding postcss-flexbugs-fixes

Using postcss-flexbugs-fixes to fix all flexbug's issues.

* Adding flexbox: 'no-2009' to Autoprefixer

It will add flexbox prefixes only for final and IE versions of
specification.

* Try to fix CI

* Try again

* Only run tests in <rootDir>/src (facebook#544) (facebook#1808)

* Only run tests in <rootDir>/src (facebook#544)

* updates Jest to 19.0.2

* removes testPathIgnorePatterns from jest config

* adds testMatch to jest config to only match files in src

* Bump babel-jest to 19.0.0 to match jest 19.0.2

* Bump dependencies (facebook#2170)

* Bump dependencies

* Bump CSS deps

* Somehow I missed dotenv

* Bump ESLint deps

* Tweak ESLint rules

* react-dev-utils/openBrowser now supports urls with 2+ params (facebook#2076)

* react-dev-utils/openBrowser now supports urls with 2+ params

Fixed facebook#2047

* react-dev-utils/openBrowser: encode url before open the browser

* Jest 20 (facebook#2171)

* Make coverage and snapshot Jest options overridable in package.json (facebook#1830)

* Override Jest config collectCoverageFrom with package.json

* Protect against overriding other options

* Better error message

* Create Jest config early on eject

* Tweak wording

* Dry it up

* Bump versions

* Resolve regenerator runtime relative to react-scripts (facebook#2175)

* Fix Flow hopefully

* Disable require.ensure() warning (facebook#2177)

* Reenable require.ensure()

* Tweak colors for better contrast on Windows (facebook#2180)

* Handle errors from port detector (facebook#2182)

* Tweak lint rules (facebook#2186)

* Ignore Moment.js locales by default (facebook#2187)

* Ignore Moment.js locales by default

* Update README.md

* Disable Yarn on CI temporarily

* Add module scope plugin (facebook#2189)

* Add module scope plugin

* Oops

* Add comments

* Check windows seps too

* More descriptive error

* Document it

* Webpack config typo (facebook#2193)

* Webpack config typo

* Webpack config more typo

* PWA-ification, via SWPrecacheWebpackPlugin + manifest.json (facebook#1728)

* sw-precache-webpack-plugin, SW registration, manifest.json

* Documentation + a few SW tweaks.

* Added an unregister method, too, just in case.

* More info for the READMEs.

* Add minify to SWPrecacheWebpackPlugin config

* Fix SWPrecacheWebpackPlugin typo

* Fix file references in READMEmd

* Add instructions for testing service-worker locally

* Review feedback

* Some additional PWA metadata

* Use sw-precache-webpack-plugin v0.9.1 for node >=4.0.0 support

* Review feedback.

* Add manifest.json context in a comment.

* Fix typo

* Downgrade to sw-precache-webpack-plugin 0.9.1

* Hide changes in README until 1.0

* Hide changes in User Guide until 1.0

* Hide more docs

* Tidy up some build logs (facebook#2197)

* Bump Jest to 20.0.3 (facebook#2196)

* Test module scoping (facebook#2198)

* Correct readme

* Add tests

* Update README.md

* Disable Uglify reduce_vars (facebook#2200)

* Tweaking error overlay styles (facebook#2201)

* Tweaked overlay styles

* Tweaked pre-style

* Clicked to background overlay dismiss

* Tidied up styles tobe more mobile Safari friendly

* Re-enabled pre-wrap

* Margin fixes

* Base font-size 10 -> 11px

* Error overlay is full-screen now based on feedback

* Make "N errors on the page" visible again

* Fix bottom margin of frame location and lack of tab nav

* Add tooltip to close button

* Bring compile error styles closer to runtime overlay

* s/when/if/

* Refactor and improve build output (facebook#2202)

* Tweaked error overlay styles (pt2) (facebook#2208)

* Fixed several of the issues and nits from PR:

* Moved margin between header and file name to header, so when content was scrolled, the header would remain more separate
* Made build-time and runtime overlays better match
* Secondary error <pre> style now uses yellow bg instead of red
* 'Scrollable Header' (see above comment to why this is necessary) but I did increase the max-height from 35% to 50%.
* Fixed header and 'X' button vertical alignment

* Temporary stack margin fix

* Move "N errors" to the top

* Move more logic from react-scripts to react-dev-utils (facebook#2209)

* Show warnings for builds

* Move WebpackDevServer helpers into react-dev-utils

* Fix vertical alignment of close button

* Cleaned up next/prev error arrow styles; arrows wrap around when clicked now (facebook#2210)

* Add temporary support for Node 4.x to global CLI (facebook#2214)

* Replace text-align: start with left to fix Edge (facebook#2215)

* ES6 syntax (facebook#2213)

* Move error overlay middleware (facebook#2216)

* "rule keywords" => "keywords"

* Improve interaction between compile and runtime overlays (facebook#2219)

* Better document PWA stuff

* Enable 1.0 docs (facebook#2220)

* Uncomment merged PRs

* Switch to br

* Update some webpack links

* Add a little about section for PWA

* oops

* fast on subsequent visits

* Add manual proxy config instructions

* hint package.json

* Change to js for comments

* Tune wording

* Add documentation about using code splitting (facebook#1801)

* Add documentation about using code splitting

* Revise docs a bit

* Update README.md

* Update README.md

* Update README.md

* Swap changelogs (facebook#2222)

* Swap changelogs

* Update and rename CHANGELOG.md to CHANGELOG-0.x.md

* Update and rename CHANGELOG-1.x.md to CHANGELOG.md

* Update CHANGELOG.md

* Publish

 - babel-preset-react-app@3.0.0
 - create-react-app@1.3.1
 - eslint-config-react-app@1.0.0
 - react-dev-utils@1.0.0
 - react-error-overlay@1.0.0
 - react-scripts@1.0.0

* Update CHANGELOG.md

* March -> May

* Fix shortcut handling in react-error-overlay (facebook#2238)

* Add explicit package dependence (facebook#2243)

Closes facebook#2232

* Fix read of .env variables (facebook#2242)

* Gracefully shut down the server on signals (facebook#2246)

* Shame on me

* Correct docs on which .env.* files are supported. (facebook#2247)

* Correct which .env. files are referenced in docs

* Highlight this is not available until 1.0.0

* Formatting

* Update README.md

* Update README.md

* Hide React Storybook from the User Guide while it's incompatible (facebook#2252)

* Hide React Storybook from the User Guide while it's incompatible

* Update README.md

* Show customized build path for serve instruction (facebook#2229)

* Show customized build path for serve instruction

* Remove cyan

* Ignore .env.local in test environment (facebook#2250)

* add noscript to template's index.html (facebook#2224)

* add noscript to template's index.html

* Tweak message

* Work around Windows path issue in SWPrecacheWebpackPlugin (facebook#2255)

* Turn off operator-assignment stylistic rule (facebook#2256)

* update readme with example of include path (facebook#2258)

* update readme with example of include path

* Update README.md

* update reference with new name (facebook#2259)

s/adding-images-and-fonts/adding-images-fonts-and-files/

* Additional fix to service worker config for "homepage" field (facebook#2262)

* Always resolve NODE_PATH (facebook#2261)

* Always resolve NODE_PATH

* Update env.js

* Fix a bug on empty NODE_PATH (facebook#2264)

* Shut down server silently, as it is too noisy

* Add changelog for 1.0.1 (facebook#2266)

* Publish

 - eslint-config-react-app@1.0.1
 - react-dev-utils@1.0.1
 - react-error-overlay@1.0.1
 - react-scripts@1.0.1

* Fix missing dependency (facebook#2269)

* Adding missing dependency

* Pinning text-table dependency

* Describe build in less fluffy terms

* Update README.md

* Update README.md

* Update CHANGELOG.md

* Add WSL support to launchEditor utility (facebook#2282)

* Only enable host check if you use proxy, and add a way to opt out of it (facebook#2288)

* Disable host check if you don't use proxy

* Add a way to opt out and document it

* Ejecting should ensure you have clean git status (facebook#2221)

* Ejecting should ensure you have clean git status

* Rename function

* Style

* Minor changes

- extract function
- exclude error output for missing git
- more descriptive error message
- no need to mutate answer
- fix answering "no" to return 0 exit code

* Add missing license headers

* Wrap console calls into a check (facebook#2290)

* Provide a no-op SW that will be served by the dev environment. (facebook#2276)

* Provide a no-op SW that will be served by the dev environment.

* Hide no-op service worker from user

* Remove unnecessary dependencies(facebook#751) (facebook#2283)

* Remove unnecessary dependencies(facebook#751)

* Sort alphabetically

* Add changelog for 1.0.2 (facebook#2291)

* Publish

 - react-dev-utils@1.0.2
 - react-error-overlay@1.0.2
 - react-scripts@1.0.2

* Roll back to an older version of case-sensitive-paths-webpack-plugin (facebook#2314)

* Wrap console calls into a check (facebook#2301)

* Wrap console calls into a check

* Add another check

* Remove `flowtype/require-valid-file-annotation` temporarily. (facebook#2311)

Until this issue (gajus/eslint-plugin-flowtype#165) is
fixed we're disabling `flowtype/require-valid-file-annotation`.

* Ensure address is private (facebook#2297)

* Ensure address is private
Resolves facebook#2296

* adjust rule

* Update WebpackDevServerUtils.js

* Changelog for 1.0.3 (facebook#2315)

* Publish

 - eslint-config-react-app@1.0.2
 - react-dev-utils@1.0.3
 - react-error-overlay@1.0.3
 - react-scripts@1.0.3

* Remove tarec from README (facebook#2323)

I no longer support this package.

Create-react-app is so great I can no longer call tarec a credible alternative 😄

* 1.0.4 changelog

* Publish

 - react-error-overlay@1.0.4
 - react-scripts@1.0.4

* Remove connect-history-api-fallback and cross-spawn dependencies from react-scripts (facebook#751) (facebook#2320)

* Allow declaring variables before use in a scope above (facebook#2325)

* Limit console warnings to 5 files at most (facebook#2327)

* Files in public/ folder should not be requested through proxy (facebook#2326)

* Add changelog for 1.0.5 (facebook#2329)

* Add "Migrating" section

* Publish

 - eslint-config-react-app@1.0.3
 - react-dev-utils@2.0.0
 - react-error-overlay@1.0.5
 - react-scripts@1.0.5

* Add missing files to README (facebook#2334)

* add missing files

* Update README.md

* Update CHANGELOG.md

* Don't resolve localhost if on network (facebook#2332)

* Don't resolve if on network

* Update WebpackDevServerUtils.js

* Resolve flow errors in eslint JSX a11y (facebook#2346)

* Upgraded eslint-plugin-jsx-a11y to 5.0.3 to take advantage of
  d70ac7d7975819e7a52b85465ec67a0d93eb962a

* Add navigateFallbackWhitelist /__* to SW Precache config (facebook#2347)

* Add navigateFallbackWhitelist /__* to SW Precache config

* Add comments

* Add changelog for 1.0.6 (facebook#2348)

* Publish

 - eslint-config-react-app@1.0.4
 - react-dev-utils@2.0.1
 - react-error-overlay@1.0.6
 - react-scripts@1.0.6

* Update webpack to v2.6.0 in react-scripts (facebook#2349)

* Fix broken links (facebook#2350)

* Print file sizes with correct build folder path. (facebook#2361)

* Print file sizes with correct build folder path.

* Just use the print the basename.

* Update README.md for `now` deployments (facebook#2372)

Simplified steps for deploying app to `now` as a static site. No need to `serve` script in `package.json` file. As of May 15, 2017, all static deployments on `now` are free and unlimited.

* Removed the overriding of reduce_vars to false since webpack v2.6.0 included the fixed for Uglify bug (facebook#2351)

* Disable comparisons feature in uglify compression in production (facebook#2379)

* Disable a micro-option in uglify that appears to be buggy

See facebook#2376

* wrong plugin

* Add a comment

* Consistently set environment variables (facebook#2382)

* Update webpack to 2.6.1 (facebook#2383)

* Add changelog for 1.0.7 (facebook#2384)

* Publish

 - react-dev-utils@3.0.0
 - react-error-overlay@1.0.7
 - react-scripts@1.0.7

* Bump beta version

* Fix deploy script env vars

* Bump react-scripts beta version

* Fix Sass transforms and module mapping in the Jest config

* Update babel-preset-trunkclub beta version; add code coverage to tests

* Update Flow dependency, remove old devDeps, bump beta version

* Update the v8 upgrade docs

* Update Jest config

* Run prettier on build-module script before merging TC upstream

* Update upgrade docs

* Release v9.0.0
wmonk pushed a commit to wmonk/create-react-app-typescript that referenced this issue Aug 7, 2017
* Disable a micro-option in uglify that appears to be buggy

See facebook/create-react-app#2376

* wrong plugin

* Add a comment
rrdelaney pushed a commit to rrdelaney/reason-scripts that referenced this issue May 23, 2018
* Disable a micro-option in uglify that appears to be buggy

See facebook/create-react-app#2376

* wrong plugin

* Add a comment
Coord pushed a commit to Azure/iot-ux-baseline that referenced this issue Jun 29, 2018
* Disable a micro-option in uglify that appears to be buggy

See facebook/create-react-app#2376

* wrong plugin

* Add a comment
@49-22
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49-22 commented Nov 24, 2018

Is the issue fixed? Can we re-enable it now in our projects?

@kzc
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kzc commented Nov 24, 2018

mapbox-gl fixed their webpack typeof global issue in mapbox/mapbox-gl-js#6956.

The workaround in https://github.com/facebook/create-react-app/pull/2379/files is no longer needed and can be reverted.

@lock lock bot locked and limited conversation to collaborators Jan 9, 2019
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