Release Notes of SlimerJS 1.0

version 1.0

Released on March 23, 2018.

New features and API

  • loading and loadingProgress properties on webpage
  • onResourceError parameter contains now always status and statusText properties
  • proxy() and setProxy() methods
  • slimer.version and slimer.geckoVersion have a new prerelease property.
  • With Firefox 56 and more, SlimerJS can be trully headless by adding the --headless option on the command line
  • Proxy config: support https URI for pac
  • new fs.isSpecial()
  • onResourceRequested: support of requestData.postData when http method is “patch”


  • implements (#473)
  • implements phantom.proxy() and phantom.setProxy() methods (#436, #444, #445)
  • Compatibility with Firefox 53 to 59

Fixed bugs

  • Fix error “ReferenceError: reference to undefined property this._stopCallback”
  • On Windows: instances launched at the same time don’t share anymore the same profile
  • On Windows: fix exit code file name
  • Remove the error message about “NS_BINDING_ABORTED”
  • fix bug in fs.isLink() and fs.readLink()
  • fix exit code on errors like “script is missing”

Fixed PhantomJS conformance issues

Other informations about this release

Missing features in SlimerJS 1.0

Comparing to PhantomJS 2.1, some few options for the command line and features on some object are missing. Among of them:

  • the possibility to deactivate SSL verification and Web security (CORS etc)
  • the possibility to set ssl client certificate
  • offline storage settings
  • the possibility to set a specific cookieJar to each web page object
  • listener of repaint events on webpage
  • the child_process module

You can read the compatibility table to know details.

See also the differences in APIs and behaviors between SlimerJS and PhantomJS.

Known issues

Contributors for this release

  • Avadh Patel
  • Brian Birtles
  • Brendan Dahl
  • Nagy Attila Gabor
  • Justin Klemm
  • Shannon Little
  • Wojciech Skorodecki (Proxy API)