Change log
==========

All notable changes to this program is documented in this file.


0.21.0 (2018-06-15)
-------------------

Note that with this release of geckodriver the minimum recommended
Firefox and Selenium versions have changed:

  - Firefox 57 (and greater)
  - Selenium 3.11 (and greater)

### Added

- Support for the chrome element identifier from Firefox.

- The `unhandledPromptBehavior` capability now accepts `accept and
  notify`, `dismiss and notify`, and `ignore` options.

  Note that the unhandled prompt handler is not fully supported in
  Firefox at the time of writing.

### Changed

- Firefox will now be started with the `-foreground` and `-no-remote`
  flags if they have not already been specified by the user in
  `moz:firefoxOptions`.

  `-foreground` will ensure the application window gets focus when
  Firefox is started, and `-no-remote` will prevent remote commands
  to this instance of Firefox and also ensure we always start a new
  instance.

- WebDriver commands that do not have a return value now correctly
  return `{value: null}` instead of an empty dictionary.

- The HTTP server now accepts `Keep-Alive` connections.

- Firefox remote protocol command mappings updated.

  All Marionette commands changed to make use of the `WebDriver:`
  prefixes introduced with Firefox 56.

- Overhaul of Firefox preferences.

  Already deprecated preferences in Firefox versions earlier than
  57 got removed.

- [webdriver crate] upgraded to 0.36.0.

### Fixed

- Force use of IPv4 network stack.

  On certain system configurations, where `localhost` resolves to
  an IPv6 address, geckodriver would attempt to connect to Firefox
  on the wrong IP stack, causing the connection attempt to time out
  after 60 seconds.  We now ensure that geckodriver uses IPv4
  consistently to both connect to Firefox and for allocating a free
  port.

- geckodriver failed to locate the correct Firefox binary if it was
  found under a _firefox_ or _firefox-bin_ directory, depending on
  the system, because it thought the parent directory was the
  executable.

- On Unix systems (macOS, Linux), geckodriver falsely reported
  non-executable files as valid binaries.

- When stdout and stderr is redirected by geckodriver, a bug prevented
  the redirections from taking effect.


0.20.1 (2018-04-06)
-------------------

### Fixed

- Avoid attempting to kill Firefox process that has stopped.

  With the change to allow Firefox enough time to shut down in
  0.20.0, geckodriver started unconditionally killing the process
  to reap its exit status.  This caused geckodriver to inaccurately
  report a successful Firefox shutdown as a failure.

  The regression should not have caused any functional problems, but
  the termination cause and the exit status are now reported correctly.


0.20.0 (2018-03-08)
-------------------

### Added

- New `--jsdebugger` flag to open the [Browser Toolbox] when Firefox
  launches.  This is useful for debugging Marionette internals.

- Introduced the temporary, boolean capability
  `moz:useNonSpecCompliantPointerOrigin` to disable the WebDriver
  conforming behavior of calculating the Pointer Origin.

### Changed

- HTTP status code for the [`StaleElementReference`] error changed
  from 400 (Bad Request) to 404 (Not Found).

- Backtraces from geckodriver no longer substitute for missing
  Marionette stacktraces.

- [webdriver crate] upgraded to 0.35.0.

### Fixed

- The Firefox process is now given ample time to shut down, allowing
  enough time for the Firefox shutdown hang monitor to kick in.

  Firefox has an integrated background monitor that observes
  long-running threads during shutdown.  These threads will be
  killed after 63 seconds in the event of a hang.  To allow Firefox
  to shut down these threads on its own, geckodriver has to wait
  that time and some additional seconds.

- Grapheme clusters are now accepted as input for keyboard input
  to actions.

  Input to the `value` field of the `keyDown` and `keyUp` action
  primitives used to only accept single characters, which means
  geckodriver would error when a valid grapheme cluster was sent in,
  for example with the tamil nadu character U+0BA8 U+0BBF.

  Thanks to Greg Fraley for fixing this bug.

- Improved error messages for malformed capability values.


0.19.1 (2017-10-30)
-------------------

### Changed

- Search suggestions in the location bar turned off as not to
  trigger network connections

- Block addons incompatible with E10s

### Fixed

- Marionette stacktraces are now correctly propagated

- Some error messages have been clarified

### Removed

- Removed obsolete `socksUsername` and `socksPassword` proxy
  configuration keys because neither were picked up or recognised


0.19.0 (2017-09-16)
-------------------

Note that with geckodriver 0.19.0 the following versions are recommended:
- Firefox 55.0 (and greater)
- Selenium 3.5 (and greater)

### Added

- Added endpoint:
  - POST `/session/{session id}/window/minimize` for the [Minimize Window]
    command

- Added preference `extensions.shield-recipe-client.api_url` to disable
  shield studies which could unexpectedly change the behavior of Firefox

- Introduced the temporary, boolean capability `moz:webdriverClick` to
  enable the WebDriver conforming behavior of the [Element Click] command

- Added crashreporter environment variables to better control the browser
  in case of crashes

- Added preference `dom.file.createInChild` set to true to allow file
  object creation in content processes

### Changed

- Log all used application arguments and not only `-marionette`

- Early abort connection attempts to Marionette if the Firefox process
  closed unexpectetly

- Removed deprecated `socksProxyVersion` in favor of `socksVersion`

- Removed `ftpProxyPort`, `httpProxyPort`, `sslProxyPort`, and
  `socksProxyPort` because _ports_ have to be set for `ftpProxy`,
  `httpProxy`, `sslProxy`, and `socksProxy` using ":<PORT>"

- The `proxyType` `noproxy` has been replaced with `direct` in accordance
  with recent WebDriver specification changes

- The [`WindowRectParameters`] have been updated to return signed 32-bit
  integers in accordance with the CSS and WebDriver specifications, and
  to be more liberal with the input types

- Mapped the [`FullscreenWindow`] to the correct Marionette command

- To make sure no browser process is left behind when the [`NewSession`]
  fails, the process is closed immediately now

- `/moz/addon/install` command accepts an `addon` parameter, in lieu of
  `path`, containing an addon as a Base64 string (fixed by [Jason Juang])

- [webdriver crate] upgraded to version 0.31.0

- [mozrunner crate] upgraded to version 0.5.0

### Removed

- Removed the following obsolete preferences for Firefox:
  - `browser.safebrowsing.enabled`
  - `browser.safebrowsing.forbiddenURIs.enabled`
  - `marionette.defaultPrefs.port`
  - `marionette.logging`


0.18.0 (2017-07-10)
-------------------

### Changed

- [`RectResponse`] permits returning floats for `width` and `height`
  fields

- New type [`CookieResponse`] for the [`GetNamedCookie`] command returns
  a single cookie, as opposed to an array of a single cookie

- To pick up a prepared profile from the filesystem, it is now possible
  to pass `["-profile", "/path/to/profile"]` in the `args` array on
  `moz:firefoxOptions`

- geckodriver now recommends Firefox 53 and greater

- Version information (`--version`) contains the hash from from the
  commit used to build geckodriver

- geckodriver version logged on startup

- [webdriver crate] upgraded to version 0.27.0

- [mozrunner crate] upgraded to version 0.4.1

### Fixed

- The [`SetTimeouts`] command maps to the Marionette `setTimeouts`
  command, which makes geckodriver compatible with Firefox 56 and greater

- Linux x86 (i686-unknown-linux-musl) builds are fixed


0.17.0 (2017-06-09)
-------------------

### Added

- Added endpoints:
  - POST `/session/{session id}/window/fullscreen` to invoke the window
    manager-specific `full screen` operation
  - POST `/session/{session id}/moz/addon/install` to install an extension
    (Gecko only)
  - POST `/session/{session id}/moz/addon/uninstall` to uninstall an
    extension (Gecko only)

### Changed

- Increasing the length of the `network.http.phishy-userpass-length`
  preference will cause Firefox to not prompt when navigating to a
  website with a username or password in the URL

- Library dependencies upgraded to mozrunner 0.4 and mozprofile 0.3
  to allow overriding of preferences via capabilities if those have been
  already set in the profile

- Library dependencies upgraded to mozversion 0.1.2 to only use the
  normalized path of the Firefox binary for version checks but not to
  actually start the browser, which broke several components in Firefox
  on Windows

### Fixed

- The [SetWindowRect] command now returns the [WindowRectResponse]
  when it is done

- Use ASCII versions of array symbols to properly display them in the
  Windows command prompt

- Use [`SessionNotCreated`] error instead of [`UnknownError`] if there
  is no current session


0.16.1 (2017-04-26)
-------------------

### Fixed

- Read Firefox version number from stdout when failing
  to look for the application .ini file (fixes [Selenium
  #3884](https://github.com/SeleniumHQ/selenium/issues/3884))

- Session is now ended when closing the last Firefox window (fixes
  [#613](https://github.com/mozilla/geckodriver/issues/613))


0.16.0 (2017-04-21)
-------------------

Note that geckodriver v0.16.0 is only compatible with Selenium 3.4
and greater.

### Added

- Support for WebDriver-conforming [New Session] negotiation, with
  `desiredCapabilities`/`requiredCapabilities` negotiation as fallback

- Added two new endpoints:
  - GET `/session/{session id}/window/rect` for [Get Window Rect]
  - POST `/session/{session id}/window/rect` for [Set Window Rect]

- Align errors with the [WebDriver errors]:
  - Introduces new errors [`ElementClickIntercepted`],
  [`ElementNotInteractable`], [`InvalidCoordinates`], [`NoSuchCookie`],
  [`UnableToCaptureScreen`], and [`UnknownCommand`]
  - Removes `ElementNotVisible` and `InvalidElementCoordinates` errors

### Removed

- Removed following list of unused endpoints:
  - GET `/session/{session id}/alert_text`
  - POST `/session/{session id}/alert_text`
  - POST `/session/{session id}/accept_alert`
  - POST `/session/{session id}/dismiss_alert`
  - GET `/session/{session id}/window_handle`
  - DELETE `/session/{session id}/window_handle`
  - POST `/session/{session id}/execute_async`
  - POST `/session/{session id}/execute`

### Changed

- [`SendKeysParameters`], which is used for the [Element Send Keys] and
  [Send Alert Text] commands, has been updated to take a string `text`
  field

- [`CookieResponse`] and [`CloseWindowResponse`] fixed to be properly
  wrapped in a `value` field, like other responses

- Allow negative numbers for `x` and `y` fields in `pointerMove` action

- Disable Flash and the plugin container in Firefox by
  default, which should help mitigate the “Plugin Container
  for Firefox has stopped wroking” problems [many users were
  reporting](https://github.com/mozilla/geckodriver/issues/225) when
  deleting a session

- Preferences passed in a profile now take precedence over
  set of default preferences defined by geckodriver (fixed by
  [Marc Fisher](https://github.com/DrMarcII))
  - The exceptions are the `marionette.port` and `marionette.log.level`
    preferences and their fallbacks, which are set unconditionally and
    cannot be overriden

- Remove default preference that disables unsafe CPOW checks

- WebDriver library updated to 0.25.2

### Fixed

- Fix for the “corrupt deflate stream” exception that
  sometimes occured when trying to write an empty profile by
  [@kirhgoph](https://github.com/kirhgoph)

- Recognise `sslProxy` and `sslProxyPort` entries in the proxy
  configuration object (fixed by [Jason Juang])

- Fix “`httpProxyPort` was not an integer” error (fixed by [Jason
  Juang])

- Fix broken unmarshaling of _Get Timeouts_ response format from Firefox
  52 and earlier (fixed by [Jason Juang])

- Allow preferences in `moz:firefoxOptions` to be both positive- and
  negative integers (fixed by [Jason Juang])

- Allow IPv6 hostnames in the proxy configuration object

- i686-unknown-linux-musl (Linux 32-bit) build fixed

- Log messages from other Rust modules are now ignored

- Improved log messages to the HTTPD


0.15.0 (2017-03-08)
-------------------

### Added

- Added routing and parsing for the [Get Timeouts] command

### Changed

- All HTTP responses are now wrapped in `{value: …}` objects per the
  WebDriver specification; this may likely require you to update your
  client library

- Pointer move action’s `element` key changed to `origin`, which
  lets pointer actions originate within the context of the viewport,
  the pointer’s current position, or from an element

- Now uses about:blank as the new tab document; this was previously
  disabled due to [bug 1333736](https://bugzil.la/1333736) in Marionette

- WebDriver libary updated to 0.23.0

### Fixed

- Aligned the data structure accepted by the [Set Timeouts] command with
  the WebDriver specification


0.14.0 (2017-01-31)
-------------------

### Changed

- Firefox process is now terminated and session ended when the last
  window is closed

- WebDriver library updated to version 0.20.0

### Fixed

- Stacktraces are now included when the error originates from within
  the Rust stack

- HTTPD now returns correct response headers for `Content-Type` and
  `Cache-Control` thanks to [Mike Pennisi]


0.13.0 (2017-01-06)
-------------------

### Changed

- When navigating to a document with an insecure- or otherwise invalid
  TLS certificate, an [insecure certificate] error will be returned

- On macOS, deducing Firefox’ location on the system will look for
  _firefox-bin_ on the system path (`PATH` environmental variable) before
  looking in the applications folder

- Window position coordinates are allowed to be negative numbers, to
  cater for maximised window positioning on Windows

- WebDriver library updated to version 0.18.0

### Fixed

- Check for single-character key codes in action sequences now counts
  characters instead of bytes


0.12.0 (2017-01-03)
-------------------

### Added

- Added [Take Element Screenshot] command

- Added new [Status] command

- Added routing for the [Get Timeouts] command, but it is not yet
  implemented in Marionette, and will return an _unsupported operation_
  error until it is

- Implemented routing for [new actions API](Actions), but it too is not
  yet fully implemented in Marionette

### Changed

- [Synced Firefox
  preferences](https://github.com/mozilla/geckodriver/commit/2bfdc3ec8151c427a6a75a6ba3ad203459540495)
  with those used in Mozilla automation

- Default log level for debug builds of Firefox, which used to be `DEBUG`,
  changed to `INFO`-level

- WebDriver library dependency upgraded to 0.17.1

- Using _session not created_ error when failing to start session

- geckodriver will exit with exit code 69 to indicate that the port
  is unavailable

### Fixed

- Improved logging when starting Firefox

- Reverted to synchronous logging, which should address cases of
  inconsistent output when failing to bind to port

- Clarified in README that geckodriver is not supported on Windows XP

- Added documentation of supported capabilities to [README]

- Included capabilities example in the [README]


0.11.1 (2016-10-10)
-------------------

### Fixed

- Version number in binary now reflects the release version


0.11.0 (2016-10-10)
-------------------

### Added

- Introduced continous integration builds for Linux- and Windows 32-bit
  binaries

- Added commands for setting- and getting the window position

- Added new extension commands for finding an element’s anonymous
  children and querying its attributes; accessible through the
  `/session/{sessionId}/moz/xbl/{elementId}/anonymous_children`
  to return all anonymous children and
  `/session/{sessionId}/moz/xbl/{elementId}/anonymous_by_attribute` to
  return an anonymous element by a name and attribute query

- Introduced a `moz:firefoxOptions` capability to customise a Firefox
  session:

  - The `binary`, `args`, and `profile` entries on this dictionary
    is equivalent to the old `firefox_binary`, `firefox_args`, and
    `firefox_profile` capabilities, which have now all been removed

  - The `log` capability takes a dictionary such as `{log: "trace"}`
    to enable trace level verbosity in Gecko

  - The `prefs` capability lets you define Firefox preferences through
    capabilities

- Re-introduced the `--webdriver-port` argument as a hidden alias to
  `--port`

### Changed

- `firefox_binary`, `firefox_args`, and `firefox_profile` capabilities
  removed in favour of the `moz:firefoxOptions` dictionary detailed above
  and in the [README]

- Removed `--no-e10s` flag, and geckodriver will from now rely on the
  Firefox default multiprocessing settings (override using preferences)

- Disable pop-up blocker in the default profile by @juangj

- Changed Rust compiler version to 1.12 (beta)
  temporarily because of [trouble linking Musl
  binaries](https://github.com/rust-lang/rust/issues/34978)

- Replaced _env_logger_ logging facility with the _slog_ package,
  causing the `RUST_LOG` environment variable to no longer have any affect

- Updated the WebDriver Rust library to version 0.15

### Fixed

- Corrected link to repository in Cargo metadata

- Verbosity shorthand flag `-v[v]` now works again, following the
  replacement of the argument parsing library in the previous release

- When the HTTPD fails to start, errors are propagated to the user

- Disabled the additional welcome URL
  (`startup.homepage_welcome_url.additional`) so that officially branded
  Firefox builds do not start with two open tabs in fresh profiles

- Disabled homepage override URL redirection on milestone upgrades,
  which means a tab with an upgrade notice is not displayed when launching
  a new Firefox version


0.10.0 (2016-08-02)
-------------------

### Changed

- Use multi-process Firefox (e10s) by default, added flag `--no-e10s`
  to disable it and removed `--e10s` flag

- Disable autofilling of forms by default by [Sven Jost]

- Replace _argparse_ with _clap_ for arguments parsing

### Fixed

- Attempt to deploy a single file from Travis when making a release

- Grammar fix in [README]


0.9.0 (2016-06-30)
------------------

### Added

- Add ability to use `firefox_binary` capability to define location of
  Firefox to use

- Automatically detect the default Firefox path if one is not given

- Cross-compile to Windows and ARMv7 (HF) in CI

- Add Musl C library-backed static binaries in CI

- Add `-v`, `-vv`, and `--log LEVEL` flags to increase Gecko verbosity

- Add Get Element Property endpoint

- Add new `--version` flag showing copying information and a link to
  the repository

### Changed

- Now connects to a Marionette on a random port by default

- Update webdriver-rust library dependency

- Migrated to use Travis to deploy new releases

- Reduced amount of logging

- Introduced a changelog (this)


0.8.0 (2016-06-07)
------------------

### Added

- Allow specifying array of arguments to the Firefox binary through the
  `firefox_args` capability

- Pass parameters with [New Session] command

### Changed

- Change product name to _geckodriver_

- Make README more exhaustive

- Quit Firefox when deleting a session

- Update webdriver-rust library

- Update dependencies

### Fixed

- Fix tests

- FIx typo in error message for parsing errors


0.7.1 (2016-04-27)
------------------

### Added

- Add command line flag for using e10s enabled Firefox by [Kalpesh
  Krishna]

- Allow providing custom profiles

### Changed

- Allow binding to an IPv6 address by [Jason Juang]

- By default, connect to host-agnostic localhost by [Jason Juang]

- Make `GeckoContextParameters` public

- Update dependencies

### Fixed

- Squash rustc 1.6 warnings by using `std::thread::sleep(dur: Duration)`


0.6.2 (2016-01-20)
------------------

### Added

- Add LICENSE file from [Joshua Burning]

- Schedule builds in CI on pushes and pull requests

### Changed

- Enable CPOWs in Marionette


0.6.0 (2016-01-12)
------------------

### Added

- Add Get Page Source endpoint

### Changed

- Handle arrays being sent from Marionette

- Correct build steps in [README]

- Update what properties are read from errors sent by Marionette

- Update dependencies


0.5.0 (2015-12-10)
------------------

### Changed

- Update argparse dependency to use Cargo

- Update to the latest version of the Marionette wire protocol

- Update to latest webdriver-rust library

- Update dependencies


0.4.2 (2015-10-02)
------------------

### Changed

- Skip compiling optional items in hyper


0.4.1 (2015-10-02)
------------------

### Changed

- Update webdriver-rust library

- Update dependencies


0.4.0 (2015-09-28)
------------------

### Added

- Add command extensions for switching between content- and chrome
  contexts

- Add more documentation from [Vlad Filippov]

### Changed

- Update Cargo.lock with new dependencies for building

- Update for protocol updates that flatten commands

- Update to new protocol error handling

- Update for Marionette protocol version 3 changes

- Strip any leading and trailing `{}` from the `sessionId` Marionette
  returns

- Update dependencies

### Fixed

- Fix `GetCSSValue` message to send correct key `propertyName`

- Fix example in documentation from @vladikoff


0.3.0 (2015-08-17)
------------------

### Added

- Add support for finding elements in subtrees


0.2.0 (2015-05-20)
------------------

### Added

- Extra debug messages

- Add ability to set WebDriver port

- Add support for getting the active element

- Add support for `GetCookies` and `DeleteCookie`/`DeleteCookies`

- Add preferences that switch off certain features not required for
  WebDriver tests

### Changed

- Make failing to communicate with Firefox a fatal error that closes
  the session

- Shut down session only when loosing connection

- Better handling of missing command line flags

- Poll for connection every 100ms rather than every 100s

- Switch to string-based error codes

- Switch webdriver-rust library dependency to be pulled from git

- Update dependencies

### Fixed

- Handle null id for switching to frame more correctly


0.1.0 (2015-04-09)
------------------

### Added

- Add proxy for converting WebDriver HTTP protocol to Marionette protocol

- Add endpoints for modal dialogue support

- Allow connecting to a running Firefox instance

- Add explicit Cargo.lock file

- Start Firefox when we get a [NewSession] command

- Add flag parsing and address parsing

- Add basic error handling

### Changed

- Update for Rust beta

- Switch to new IO libraries

- Pin webdriver-rust commit so we can upgrade rustc versions independently

- Set preferences when starting Firefox

- Improve some error messages

- Re-enable environment variable based logging

### Fixed

- Fix Get Element Rect command to return floats instead of integers

- Fix passing of web elements to Switch To Frame command

- Fix serialisation of script commands

- Fix assorted bugs found by the Selenium test suite

- Fix conversion of Find Element/Find Elements responses from Marionette
  to WebDriver

- Fixed build by updating Cargo.lock with new dependencies for building

- Squash compile warnings



[README]: https://github.com/mozilla/geckodriver/blob/master/README.md
[Browser Toolbox]: https://developer.mozilla.org/en-US/docs/Tools/Browser_Toolbox

[`CloseWindowResponse`]: https://docs.rs/webdriver/newest/webdriver/response/struct.CloseWindowResponse.html
[`CookieResponse`]: https://docs.rs/webdriver/newest/webdriver/response/struct.CookieResponse.html
[`DeleteSession`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.DeleteSession
[`ElementClickIntercepted`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.ElementClickIntercepted
[`ElementNotInteractable`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.ElementNotInteractable
[`FullscreenWindow`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.FullscreenWindow
[`GetNamedCookie`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.GetNamedCookie
[`GetWindowRect`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.GetWindowRect
[`InvalidCoordinates`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.InvalidCoordinates
[`MaximizeWindow`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.MaximizeWindow
[`MinimizeWindow`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.MinimizeWindow
[`NewSession`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.NewSession
[`NoSuchCookie`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.NoSuchCookie
[`RectResponse`]: https://docs.rs/webdriver/0.27.0/webdriver/response/struct.RectResponse.html
[`SendKeysParameters`]: https://docs.rs/webdriver/newest/webdriver/command/struct.SendKeysParameters.html
[`SessionNotCreated`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.SessionNotCreated
[`SetTimeouts`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.SetTimeouts
[`SetWindowRect`]: https://docs.rs/webdriver/newest/webdriver/command/enum.WebDriverCommand.html#variant.SetWindowRect
[`StaleElementReference`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.StaleElementReference
[`UnableToCaptureScreen`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.UnableToCaptureScreen
[`UnknownCommand`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.UnknownCommand
[`UnknownError`]: https://docs.rs/webdriver/newest/webdriver/error/enum.ErrorStatus.html#variant.UnknownError
[`WindowRectParameters`]: https://docs.rs/webdriver/newest/webdriver/command/struct.WindowRectParameters.html

[mozrunner crate]: https://crates.io/crates/mozrunner
[webdriver crate]: https://crates.io/crates/webdriver

[Actions]: https://w3c.github.io/webdriver/webdriver-spec.html#actions
[Delete Session]: https://w3c.github.io/webdriver/webdriver-spec.html#delete-session
[Element Click]: https://w3c.github.io/webdriver/webdriver-spec.html#element-click
[Get Timeouts]: https://w3c.github.io/webdriver/webdriver-spec.html#get-timeouts
[Get Window Rect]: https://w3c.github.io/webdriver/webdriver-spec.html#get-window-rect
[insecure certificate]: https://w3c.github.io/webdriver/webdriver-spec.html#dfn-insecure-certificate
[Minimize Window]: https://w3c.github.io/webdriver/webdriver-spec.html#minimize-window
[New Session]: https://w3c.github.io/webdriver/webdriver-spec.html#new-session
[Send Alert Text]: https://w3c.github.io/webdriver/webdriver-spec.html#send-alert-text
[Set Timeouts]: https://w3c.github.io/webdriver/webdriver-spec.html#set-timeouts
[Set Window Rect]: https://w3c.github.io/webdriver/webdriver-spec.html#set-window-rect
[Status]: https://w3c.github.io/webdriver/webdriver-spec.html#status
[Take Element Screenshot]: https://w3c.github.io/webdriver/webdriver-spec.html#take-element-screenshot
[WebDriver errors]: https://w3c.github.io/webdriver/webdriver-spec.html#handling-errors

[Jason Juang]: https://github.com/juangj
[Joshua Bruning]: https://github.com/joshbruning
[Kalpesh Krishna]: https://github.com/martiansideofthemoon
[Mike Pennisi]: https://github.com/jugglinmike
[Sven Jost]: https://github/mythsunwind
[Vlad Filippov]: https://github.com/vladikoff
