* Use optional chaining syntax

* Changes as per review

* Bug fix

* Remove experiment

* Add back ssr-prepass for serverless test

* Update size as they both decreased
Co-authored-by: NJJ Kasper <jj@jjsweb.site>

* Add headers support to custom-routes

* Update manifest version test

* Add headers field for dynamic routes test

* Update test

* Add handling for params in destination query

* Update describe name

* Add error for rewrite to auto-exported dynamic page

* Update packages/next/next-server/server/render.tsx
Co-authored-by: NJoe Haddad <timer150@gmail.com>

* Add basePath support

* Add tests including copy of HMR tests

* Add production tests

* Add tests for serverless target

* Add missing quotes

* Add check: true behavior to custom routes

* Update adding dev routes

* Add checking of pages and dynamic routes for check: true

* Fix hasPage binding

* Add tests for check: true behavior

* Update regex checking

* Make changes based on review

* Update to handle rewrites in serverless loader

* Update to not change req.url

* Make sure to always parse dynamic route params

* Export all of pathToRegexp from path-match
Co-authored-by: NJoe Haddad <timer150@gmail.com>

* Fix query values being passed in dev mode for SSG

* Update test names

* De-dupe pagesManifest

* Update handleApiRequest a bit

* Simplify handleApiRequest a bit

* Update packages/next/next-server/server/next-server.ts
Co-authored-by: NJoe Haddad <joe.haddad@zeit.co>

* Add checking of custom routes for invalid fields

* Remove un-used test imports

* Mentioned statusCode can be undefined in error message

* Update test

* Update invalid routes output

* Add checking to make sure source/destination start with slash

* Update import

* Upgrade `path-to-regexp`

* Correct import

* Update delimiter

* Fix path match

* Fix hot loader

* Fix params.path usage and pathToRegexp import

* Revert changes for params.path

* Fix lint

* Simplify path match function

* Delimiter should always be `/`

* Fix passed in params

* Add new regex wrapping

* Wrap another route

* Fix error message match

* Add custom routes to build output

* De-dupe code a bit

* Adds err.sh for multi-match error

* Fix missing apostrophe

* Update regex to catch other param names

* Add test for multi-match error

* Update test/integration/invalid-multi-match/test/index.test.js

* Add handling for rewriting to /_next with catchall

* bump

* Fix next-news inconsistent return type

* Add failing test for static file rewrite

* Revert "Fix next-news inconsistent return type"

This reverts commit b66e76fb86061e45741c3c4bb9296a0874900f76.

* Add failing test for double redirect

* Fix bug in matcher when having multiple redirects

* Remove custom traversal in favor of router handling it

* Update next-server.ts

* Update router.ts

* Temporarily disable test

* Don't deeply resolve redirects

* Support combined parameters + query passing

* Make sure params are correctly passed in

* Add test for hash in route

* Fix typo in serverless loader

* Add test for top level error in API route

* Fix type error

* Render 404 for isInternalUrl in render

* Fix internal handling for static dir

* Update `packages/`

* Update examples

* Update tests

* Update bench

* Update top level files

* Fix build

* trigger

* Test custom-routes serverless

* Make sure we add default statusCode to routes-manifest

* Update routes-manifest

* Add DEFAULT_REDIRECT_STATUS constant

* add initial custom-routes handling

* Add tests for custom-routes

* Handle chained redirects, separate dev custom
routes reading, and add version to routes manifest

* Handle no routes manifest

* Swap build custom routes calling

* Add flatten-routes

* Add flattening of custom routes

* Re-work implementation to follow routes top-down

* Add regex field to routes-manifest

* Fix path-to-regexp match breaking after upgrade

* Fix duplicate const from merge

* Add some changes from review

* Don't make path-match strict

* add default custom route values

* Update routes-manifest

* Update options for path-match

* Remove todo

* Add test for rewrite with params

* Only use strict mode for custom routes

* Update dynamic-routing test

* Move getCustomRoutes to prepare

* Remove extra change

* Update handling for error-in-error test

* Apply suggestions from code review
Co-Authored-By: NJoe Haddad <joe.haddad@zeit.co>

* Apply suggestions from review

* Update slice change

* Apply suggestions from code review
Co-Authored-By: NJoe Haddad <joe.haddad@zeit.co>

* Apply suggestions from review

* Fix TypeScript error

* Fix getCustomRoutes in dev mode

* Apply suggestions from code review

* Update slice

* Apply suggestions from code review
Co-Authored-By: NJoe Haddad <joe.haddad@zeit.co>

* Delete un-used test page

* Add test for param overwriting

* Apply suggestions from code review
Co-Authored-By: NJoe Haddad <joe.haddad@zeit.co>

* Add extra check to param test

* Only add static files route if folder exists

* Remove extra import

* Add initial bit for plugins

* Add checks for needed metadata values

* Add test

* Initial plugins changes

* Add handling for _app middleware

* Add loading of _document middleware and
handling of multiple default export syntaxes

* Fix insert order for middleware member expression

* Remove early return from middleware plugin from testing

* Add tests for current plugin middlewares

* Update test plugin package.json

* Update handling for class default export

* Update to use webpack loader instead of babel
plugin, remove redundant middleware naming, and add field for required env for plugins

* Add middleware to support material-ui use case
and example material-ui plugin

* Update tests and remove tests stuff from google analytics plugin

* Remove old plugin suite

* Add init-server middleware

* Exit hard without stack trace when error in collecting plugins

* Add on-error-client and on-error-server and update
to run init-server with next-start in serverless mode

* Update init-client for google analytics plugin

* Add example Sentry plugin and update with-sentry-simple

* Remove middleware field/folder and use src dir for plugins

* Add post-hydration middleware and update
material-ui plugin

* Put plugins code behind flag

* Update chromedriver

* Revert "Update chromedriver"

This reverts commit 1461e978e677f7da05e29e0415ec614a04bf65f9.

* Update lock file

* Remove un-needed _app for sentry example

* Add auto loading of scoped packages, add plugins
config for manually listing plugins, and update
to only collect plugins once

* Update example plugins

* Expose plugins' config

* Rename plugin lifecycles and add babel-preset-build

* Rename other methods with unstable

* Update log when plugin config overrides auto-detecting

* Cache No-Revalidate Pages

* Specifically check for `false`

* Update to error on usage of serverRuntimeConfig with serverless

* Add tests for errors for serverless and runtime configs

* Update docs wording

* Add buildId to SPR data routes

* Update buildId replace in serverless loader

* Use new RegExp and add comment

* Apply suggestions from code review
Co-Authored-By: NJoe Haddad <joe.haddad@zeit.co>

* Test to ensure client transition and handle / data route

* Test `public/static/` folder

* Public routes should be matched before static catch-all

* Remove experimental.publicDirectory config

* Error when public is set as an output dir

* Remove experimental.publicDirectory checks

* Update publicFiles checking in next build

* Convert Dev Server to TypeScript
This converts the Next.js Development Server to TypeScript in prep for upcoming changes.

* Convert remaining necessary

* Fix some type errors

* Adjust types

The Now CDN does not support the `stale-if-error` header and already behaves like that for `stale-while-revalidate`.

Removing this header allows Now CDN to use its default headers instead of sending _only_ `stale-if-error` after stripping `s-maxage` and `stale-while-revalidate`.

* Add revalidate header and error when invalid
object from getStaticProps

* Make sprCache no-op in dev mode

* Update packages/next/next-server/server/next-server.ts

* Update tests for fixes

* Update getStaticProps error and add test

* Update manifest test

* Add validating revalidate value

* Apply suggestions from code review
Co-Authored-By: NJoe Haddad <joe.haddad@zeit.co>

* Change from error to warning high revalidate value

* Add find-pages-dir

* Add support for src directory

* Add test for pages dir preference

* Update comment

* initial commit for SPRv2

* Add initial SPR cache handling

* update SPR handling

* Implement SPR handling in render

* Update tests, handle caching with serverless next
start, add TODOs, and update manifest generating

* Handle no prerender-manifest from not being used

* Fix url.parse error

* Apply suggestions from code review
Co-Authored-By: NJoe Haddad <joe.haddad@zeit.co>

* Replace set with constants in next-page-config

* simplify sprStatus.used

* Add error if getStaticProps is used with getInitialProps

* Remove stale TODO

* Update revalidate values in SPR cache for non-seeded routes

* Apply suggestions from code review

* Remove concurrency type

* Rename variable for clarity

* Add copying prerender files during export

* Add comment for clarity

* Fix exporting

* Update comment

* Add additional note

* Rename variable

* Update to not re-export SPR pages from build

* Hard navigate when fetching data fails

* Remove default extension

* Add brackets

* Add checking output files to prerender tests

* Adjust export move logic

* Clarify behavior of export aggregation

* Update variable names for clarity

* Update tests

* Add comment

* s/an oxymoron/contradictory/

* rename

* Extract error case

* Add tests for exporting SPR pages and update
/_next/data endpoint to end with .json

* Relocate variable

* Adjust route building

* Rename to unstable

* Rename unstable_getStaticParams

* Fix linting

* Only add this when a data request

* Update prerender data tests

* s/isServerless/isLikeServerless/

* Don't rely on query for `next start` in serverless mode

* Rename var

* Update renderedDuringBuild check

* Add test for dynamic param with bracket

* Fix serverless next start handling

* remove todo

* Adjust comment

* Update calculateRevalidate

* Remove cache logic from render.tsx

* Remove extra imports

* Move SPR cache logic to next-server

* Remove old isDynamic prop

* Add calling App getInitialProps for SPR pages

* Update revalidate logic

* Add isStale to SprCacheValue

* Update headers for SPR

* add awaiting pendingRevalidation

* Dont return null for revalidation render

* Adjust logic

* Be sure to remove coalesced render

* Fix data for serverless

* Create a method coalescing utility

* Remove TODO

* Extract send payload helper

* Wrap in-line

* Move around some code

* Add tests for de-duping and revalidating

* Update prerender manifest test

* Global CSS Support

* Fix webpack configuration

* oneOf rule isn't necessary yet

* Adjust CSS chunk naming

* Begin testing CSS behavior

* Add another test TODO

* Replace null-loader with ignore-loader

* Turn on chunks for new CSS feature

* Fix multi test suite

* Test CSS import order

* Test style HMR

* Test CSS compilation

* Test compilation and prefixing together

* Verify CSS styling works for Development and Production

* Add missing TODO

* Remove unnecessary test

* Adjust TODO message

* Hide page until React hydrates

* Revert "Hide page until React hydrates"

This reverts commit 898d4e0ee547b003d5790e2b11476740d645b907.

* Hide FOUC during development

* Test CSS imports

* Update tests TODO

* Add fixture for url() test

* Test `file-loader` support in CSS files

* Use a simple variant of cssnano

* Self-import

* Undo bundling

* Implement suggestion

* Initial move

* Make emitting work

* Update paths

* Remove leftover files

* Add correct externals configuration

* Import correct path

* Update path to work with ts-server test

* Update lib directory

* Compile next-server/lib

* Revert 405 on pages

* Modify tests

* Experimental: Serverless Trace target
The Serverless Trace target produces Serverless-handler wrapped entrypoints, but does not bundle all of `node_modules`.

This behavior increases bundling performance to be more akin to `target: 'server'`.

This mode is expected to be used with smart platforms (like [ZEIT Now](https://zeit.co/now) that can trace a program to its minimum dependencies.

* Use more generic variables

* Add asset relocator for production mode of serverless trace

* Verify Firebase compatiblity

* Revert "Add asset relocator for production mode of serverless trace"

This reverts commit 8404f1dcf28b60edab41a56c94b38dcd3fddec20.

* Add serverless trace tests

* Add _isLikeServerless helper

* Make constants

* Fix export

* Update packages/next-server/server/config.ts
Co-Authored-By: NJJ Kasper <jj@jjsweb.site>

* Use a global helper for is like serverless

* Update import for isTargetLikeServerless

* Update packages/next/build/index.ts
Co-Authored-By: NJJ Kasper <jj@jjsweb.site>

* Add `compress` option to enable gzip compression in `next start`.

* Add compress option, defaulting to true

* Disable compression for serverless target

* Pin compression dep
Co-Authored-By: NJoe Haddad <timer150@gmail.com>

* Pin compression types
Co-Authored-By: NJoe Haddad <timer150@gmail.com>

* lockfile update for locked compression deps

* simplify compression middleware application

* add test for compression