Breaking change: Puppeteer no longer uses Node’s EventEmitter library
As part of our work to make Puppeteer agnostic of its environment we are removing the dependency on Node’s EventEmitter in favour of an event emitter that is not tied to Node. Under the hood we use Mitt, but we extend Mitt with additional functionality to match most of the methods that Node’s EventEmitter provides. The following methods have been removed from Puppeteer classes that extend EventEmitter:
eventNames()
getMaxListeners()
listeners(eventName)
prependListener
prependOnceListener
setMaxListeners(n)
rawListeners(eventName)
Additionally all the static methods on the EventEmitter class are not supported:
listenerCount(emitter, eventName)
defaultMaxListeners
errorMonitor
Node’s EventEmitter emitted a newListener event when a listener was added and a removeListener event when one was removed. These are not supported and will not be emitted.
New features and improvements
Send/receive debug logs are now split out into separate channels making the logs much clearer (#6017)
You can now call isJavaScriptEnabled() on a Puppeteer page to find out if JS is enabled on the page (#5993)
Bug fixes
Puppeteer is now much better at killing lingering browser processes, especially when you exit a test run with Ctrl-C (#6011)
Behind the scenes
We've started work on a new documentation system that uses TSDoc to generate documentation from our source code and have been porting documentation into code accordingly.
Raw notes
5493494 - chore: mark version 4.0.0
03ab1c1 - fix: improve Ctrl + C support (#6011)
b659969 - chore: migrate away from Node's EventEmitter (#5979)
6e060ce - fix(connection): separate send/receive debug logging (#6017)
c701ea1 - chore: fix npm test command (#6010)
398c16d - chore: fix docs linter (#6009)
4205ff7 - docs(api): remove subheader for non-namespace
3d56a9e - chore: add test configuration options for running tests against multiple products (#5964)
5c91dfb - chore: move index.js into src (#6007)
8a099a0 - docs: replace @return with @returns (#6006)
23f18d8 - docs(new): start documenting the Page class (#6001)
c1d7be3 - docs(api): add copy-pasting text example to Mouse class (#6000)
91eb745 - chore: ensure new-docs are up to date (#5994)
b86ff21 - feat(api): add Page.isJavaScriptEnabled + mark properties as private (#5993)
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Bumps puppeteer from 3.3.0 to 4.0.0.
Release notes
Sourced from puppeteer's releases.
Commits
2ffe710
chore: mark version 4.0.0 (#6018)03ab1c1
fix: improve Ctrl + C support (#6011)b659969
chore: migrate away from Node's EventEmitter (#5979)6e060ce
fix(connection): separate send/receive debug logging (#6017)c701ea1
chore: fix npm test command (#6010)398c16d
chore: fix docs linter (#6009)4205ff7
docs(api): remove subheader for non-namespace3d56a9e
chore: add test configuration options for running tests against multiple prod...5c91dfb
chore: moveindex.js
intosrc
(#6007)8a099a0
docs: replace @return with @returns (#6006)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase
.Note: This repo was added to Dependabot recently, so you'll receive a maximum of 5 PRs for your first few update runs. Once an update run creates fewer than 5 PRs we'll remove that limit.
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Bump now
in your Dependabot dashboard.Dependabot commands and options
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