* Make sure reading the body of same JSON page request safe.
It's not possible to read the body twice from fetch()'s response
So, we've to clone the response before doing anything.
* Fix tests.
* Implement a very simple prefetching solution.
* Remove next-prefetcher.
* Require 'whatwg-fetch' only in the client.
* Use xhr in the code.
* Use a simple fetching solution.
* Fix 404 and xhr status issue.
* Move the prefetching implementation to next/router.
* Add deprecated warnning for next/prefetch
* Run only 2 parellel prefetching request at a time.
* Change xhr to jsonPageRes.
* Improve the prefetching logic.
* Add unit tests covering the Router.prefetch()
* Update examples to use the new syntax.
* Update docs.
* Use execOnce() to manage warn printing.
* Remove prefetcher building from the flyfile.js
Because, we no longer use it.
* Use jest-cli instead of gulp plugin.
* Use jest-cli instead of gulp plugin.
* Move fixtures into the examples dir.
* Move test code of example app to the basic example.
* Add isolated tests for server/resolve
* Allow tests to use cheerio.
* Use portfinder to get a unique port.
* Move back integration tests into the example dir.
* Introduce next-test-utils.
* Remove gulp-jest
* Add coveralls support.
* Use transpiled version of code in dist.
This is to make sure same file gets covered
by both unit/isolated tests and integration tests.
* Add support for source maps.
* Use code from dist always.
* Use nyc to stop instrument.
* Add integration test suite for production usage.
* Use jest-cli.
* Add support for running e2e tests.
* Check gzipPath with fs.stat before serving
Otherwise, serve package might throw issues other than ENOENT
* Install chromedriver with npm install.
* Install chrome on travis-ci.
* Add --forceExit to Jest.
* Run tests only on Node v6.
That's because selenium-webdriver only supports
Node 6 LTS.
* Use chromedriver NPM module to install chromedriver.
* Use wd as the webdriver client.
* Run chromedriver before tests.
* Run travis for both node 4 and 6
* Remove unwanted npm install script.
* Move some common text utilities to next-test-utils
* Add lint checks and testing in npm prepublish hook.
* Use npm on travis-ci.
We are having some caching issues with yarn and chromedriver.
* Make tests work on windows.\n But chromedriver doesn't work.
* Clean up dependencies.
* Run chromedriver in background without any tools.
* Fix a typo in the code.
* Use ES6 features used in node4 inside the gulpfile.
* Add some comments.
* Add support for running in windows.
* Stop chromedriver properly on windows.
* Fix typos.
