Selenium::Remote::Spec - Implement commands for Selenium::Remote::Driver


version 1.47


Defines all the HTTP endpoints available to execute on a selenium server.

If you have either a customized Selenium Server, or want new features you should update the _cmds hash.

Webdriver 3 capabilities

WD3 giveth and taketh away some caps. Here's all you get:

    Browser name:                     "browserName"             string  Identifies the user agent.
    Browser version:                  "browserVersion"          string  Identifies the version of the user agent.
    Platform name:                    "platformName"            string  Identifies the operating system of the endpoint node.
    Accept insecure TLS certificates: "acceptInsecureCerts"     boolean Indicates whether untrusted and self-signed TLS certificates are implicitly trusted on navigation for the duration of the session.
    Proxy configuration:              "proxy"                   JSON    Defines the current session’s proxy configuration.

New Stuff:

    Page load strategy:               "pageLoadStrategy"        string  Defines the current session’s page load strategy.
    Window dimensioning/positioning:  "setWindowRect"           boolean Indicates whether the remote end supports all of the commands in Resizing and Positioning Windows.
    Session timeouts configuration:   "timeouts"                JSON    Describes the timeouts imposed on certain session operations.
    Unhandled prompt behavior:        "unhandledPromptBehavior" string  Describes the current session’s user prompt handler.


Current Maintainers:

  • George S. Baugh <>

Previous maintainers:

  • Daniel Gempesaw <>

  • Emmanuel Peroumalnaïk <>

  • Luke Closs <>

  • Mark Stosberg <>

Original authors:

  • Aditya Ivaturi <>


Copyright (c) 2010-2011 Aditya Ivaturi, Gordon Child

Copyright (c) 2014-2017 Daniel Gempesaw

Copyright (c) 2018-2021 George S. Baugh

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.