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The Window interface represents a window containing a DOM document; the document property points to the DOM document loaded in that window. A window for a given document can be obtained using the document.defaultView property.

A global variable, window, representing the window in which the script is running, is exposed to JavaScript code.

The Window interface is home to a variety of functions, namespaces, objects, and constructors which are not necessarily directly associated with the concept of a user interface window. However, the Window interface is a suitable place to include these items that need to be globally available. Many of these are documented in the  JavaScript Reference and the DOM Reference.

In a tabbed browser, each tab is represented by its own Window object; the global window seen by JavaScript code running within a given tab always represents the tab in which the code is running. That said, even in a tabbed browser, some properties and methods still apply to the overall window that contains the tab, such as resizeTo() and innerHeight. Generally, anything that can't reasonably pertain to a tab pertains to the window instead.

Properties

This interface inherits properties from the EventTarget interface and implements properties from the WindowOrWorkerGlobalScope and WindowEventHandlers mixins.

Note that properties which are objects (e.g.,. for overriding the prototype of built-in elements) are listed in a separate section below.

Window.closed Read only
This property indicates whether the current window is closed or not.
Window.console Read only
Returns a reference to the console object which provides access to the browser's debugging console.
Window.content and Window._content Read only
Returns a reference to the content element in the current window. Since Firefox 57 (initially Nightly-only), both versions are only available from chrome (privileged) code, and not available to the web anymore.
Window.controllers Read only
Returns the XUL controller objects for the current chrome window.
Window.customElements Read only
returns a reference to the CustomElementRegistry object, which can be used to register new custom elements and get information about previously registered custom elements.
Window.crypto Read only
Returns the browser crypto object.
Window.defaultStatus Obsolete since Gecko 23
Gets/sets the status bar text for the given window.
Window.devicePixelRatio Read only
Returns the ratio between physical pixels and device independent pixels in the current display.
Window.dialogArguments Read only
Gets the arguments passed to the window (if it's a dialog box) at the time window.showModalDialog() was called. This is an nsIArray.
Window.directories
Synonym of window.personalbar
Window.document Read only
Returns a reference to the document that the window contains.
Window.DOMMatrix Read only
Returns a reference to a DOMMatrix object, which represents 4x4 matrices, suitable for 2D and 3D operations.
Window.DOMMatrixReadOnly Read only
Returns a reference to a DOMMatrixReadOnly object, which represents 4x4 matrices, suitable for 2D and 3D operations.
Window.DOMPoint Read only
Returns a reference to a DOMPoint object, which represents a 2D or 3D point in a coordinate system.
Window.DOMPointReadOnly Read only
Returns a reference to a DOMPointReadOnly object, which represents a 2D or 3D point in a coordinate system.
Window.DOMQuad Read only
Returns a reference to a DOMQuad object, which provides represents a quadrilaterial object, that is one having four corners and four sides.
Window.DOMRect Read only
Returns a reference to a DOMRect object, which represents a rectangle.
Window.DOMRectReadOnly Read only
Returns a reference to a DOMRectReadOnly object, which represents a rectangle.
Window.event Read only
Returns the current event, which is the event currently being handled by the JavaScript code's context, or undefined if no event is currently being handled. The Event object passed directly to event handlers should be used instead whenever possible.
Window.frameElement Read only
Returns the element in which the window is embedded, or null if the window is not embedded.
Window.frames Read only
Returns an array of the subframes in the current window.
Window.fullScreen
This property indicates whether the window is displayed in full screen or not.
Window.globalStorage Obsolete since Gecko 13
Unsupported since Gecko 13 (Firefox 13). Use Window.localStorage instead.
Was: Multiple storage objects that are used for storing data across multiple pages.
Window.history Read only
Returns a reference to the history object.
Window.innerHeight Read only
Gets the height of the content area of the browser window including, if rendered, the horizontal scrollbar.
Window.innerWidth Read only
Gets the width of the content area of the browser window including, if rendered, the vertical scrollbar.
Window.isSecureContext Read only
Indicates whether a context is capable of using features that require secure contexts.
Window.length Read only
Returns the number of frames in the window. See also window.frames.
Window.location
Gets/sets the location, or current URL, of the window object.
Window.locationbar Read only
Returns the locationbar object, whose visibility can be toggled in the window.
Window.localStorage Read only
Returns a reference to the local storage object used to store data that may only be accessed by the origin that created it.
Window.menubar Read only
Returns the menubar object, whose visibility can be toggled in the window.
Window.messageManager
Returns the message manager object for this window.
Window.mozAnimationStartTime Read only
The time in milliseconds since epoch at which the current animation cycle began. Use Animation.startTime instead.
Window.mozInnerScreenX Read only
Returns the horizontal (X) coordinate of the top-left corner of the window's viewport, in screen coordinates. This value is reported in CSS pixels. See mozScreenPixelsPerCSSPixel in nsIDOMWindowUtils for a conversion factor to adapt to screen pixels if needed.
Window.mozInnerScreenY Read only
Returns the vertical (Y) coordinate of the top-left corner of the window's viewport, in screen coordinates. This value is reported in CSS pixels. See mozScreenPixelsPerCSSPixel for a conversion factor to adapt to screen pixels if needed.
Window.mozPaintCount Read only
Returns the number of times the current document has been rendered to the screen in this window. This can be used to compute rendering performance.
Window.name
Gets/sets the name of the window.
Window.navigator Read only
Returns a reference to the navigator object.
Window.opener
Returns a reference to the window that opened this current window.
Window.orientation Read only
Returns the orientation in degrees (in 90 degree increments) of the viewport relative to the device's natural orientation.
Window.outerHeight Read only
Gets the height of the outside of the browser window.
Window.outerWidth Read only
Gets the width of the outside of the browser window.
Window.pageXOffset Read only
An alias for window.scrollX.
Window.pageYOffset Read only
An alias for window.scrollY
Window.parent Read only
Returns a reference to the parent of the current window or subframe.
Window.performance Read only
Returns a Performance object, which includes the timing and navigation attributes, each of which is an object providing performance-related data. See also Using Navigation Timing for additional information and examples.
Window.personalbar Read only
Returns the personalbar object, whose visibility can be toggled in the window.
Window.pkcs11 Obsolete since Gecko 29
Formerly provided access to install and remove PKCS11 modules.
Window.returnValue
The return value to be returned to the function that called window.showModalDialog() to display the window as a modal dialog.
Window.screen Read only
Returns a reference to the screen object associated with the window.
Window.screenX Read only
Returns the horizontal distance of the left border of the user's browser from the left side of the screen.
Window.screenY Read only
Returns the vertical distance of the top border of the user's browser from the top side of the screen.
Window.scrollbars Read only
Returns the scrollbars object, whose visibility can be toggled in the window.
Window.scrollMaxX Read only
The maximum offset that the window can be scrolled to horizontally, that is the document width minus the viewport width.
Window.scrollMaxY Read only
The maximum offset that the window can be scrolled to vertically (i.e., the document height minus the viewport height).
Window.scrollX Read only
Returns the number of pixels that the document has already been scrolled horizontally.
Window.scrollY Read only
Returns the number of pixels that the document has already been scrolled vertically.
Window.self Read only
Returns an object reference to the window object itself.
Window.sessionStorage
Returns a reference to the session storage object used to store data that may only be accessed by the origin that created it.
Window.sidebar Read only
Returns a reference to the window object of the sidebar.
Window.speechSynthesis Read only
Returns a SpeechSynthesis object, which is the entry point into using Web Speech API speech synthesis functionality.
Window.status
Gets/sets the text in the statusbar at the bottom of the browser.
Window.statusbar Read only
Returns the statusbar object, whose visibility can be toggled in the window.
Window.toolbar Read only
Returns the toolbar object, whose visibility can be toggled in the window.
Window.top Read only
Returns a reference to the topmost window in the window hierarchy. This property is read only.
Window.visualViewport Read only
Returns a VisualViewport object which represents the visual viewport for a given window.
Window.window Read only
Returns a reference to the current window.
window[0], window[1], etc.
Returns a reference to the window object in the frames. See Window.frames for more details.

Properties implemented from elsewhere

WindowOrWorkerGlobalScope.caches Read only
Returns the CacheStorage object associated with the current context. This object enables functionality such as storing assets for offline use, and generating custom responses to requests.
WindowOrWorkerGlobalScope.indexedDB Read only
Provides a mechanism for applications to asynchronously access capabilities of indexed databases; returns an IDBFactory object.
WindowOrWorkerGlobalScope.isSecureContext Read only
Returns a boolean indicating whether the current context is secure (true) or not (false).
WindowOrWorkerGlobalScope.origin Read only
Returns the global object's origin, serialized as a string. (This does not yet appear to be implemented in any browser.)

Methods

This interface inherits methods from the EventTarget interface and implements methods from WindowOrWorkerGlobalScope and EventTarget.

Window.alert()
Displays an alert dialog.
Window.back()
Moves back one in the window history. This method is obsolete; you should instead use window.history.back().
Window.blur()
Sets focus away from the window.
Window.cancelAnimationFrame() 
Enables you to cancel a callback previously scheduled with Window.requestAnimationFrame.
Window.cancelIdleCallback() 
Enables you to cancel a callback previously scheduled with Window.requestIdleCallback.
Window.captureEvents()
Registers the window to capture all events of the specified type.
Window.clearImmediate()
Cancels the repeated execution set using setImmediate.
Window.close()
Closes the current window.
Window.confirm()
Displays a dialog with a message that the user needs to respond to.
Window.disableExternalCapture() Obsolete since Gecko 24
FIXME: NeedsContents
Window.dispatchEvent()
Used to trigger an event.
Window.dump()
Writes a message to the console.
Window.enableExternalCapture() Obsolete since Gecko 24
FIXME: NeedsContents
Window.find()
Searches for a given string in a window.
Window.focus()
Sets focus on the current window.
Window.forward()
Moves the window one document forward in the history. This method is obsolete; you should instead use window.history.forward().
Window.getAttention()
Flashes the application icon.
Window.getAttentionWithCycleCount()
FIXME: NeedsContents
Window.getComputedStyle()
Gets computed style for the specified element. Computed style indicates the computed values of all CSS properties of the element.
Window.getDefaultComputedStyle() 
Gets default computed style for the specified element, ignoring author stylesheets.
Window.getSelection()
Returns the selection object representing the selected item(s).
Window.home()
Returns the browser to the home page.
Window.matchMedia()
Returns a MediaQueryList object representing the specified media query string.
Window.maximize()
FIXME: NeedsContents
Window.minimize() (top-level XUL windows only)
Minimizes the window.
Window.moveBy()
Moves the current window by a specified amount.
Window.moveTo()
Moves the window to the specified coordinates.
Window.open()
Opens a new window.
Window.openDialog()
Opens a new dialog window.
Window.postMessage()
Provides a secure means for one window to send a string of data to another window, which need not be within the same domain as the first.
Window.print()
Opens the Print Dialog to print the current document.
Window.prompt()
Returns the text entered by the user in a prompt dialog.
Window.releaseEvents()
Releases the window from trapping events of a specific type.
Window.requestAnimationFrame()
Tells the browser that an animation is in progress, requesting that the browser schedule a repaint of the window for the next animation frame.
Window.requestIdleCallback()  
Enables the scheduling of tasks during a browser's idle periods.
Window.resizeBy()
Resizes the current window by a certain amount.
Window.resizeTo()
Dynamically resizes window.
Window.restore()
FIXME: NeedsContents
Window.routeEvent() Obsolete since Gecko 24
FIXME: NeedsContents
Window.scroll()
Scrolls the window to a particular place in the document.
Window.scrollBy()
Scrolls the document in the window by the given amount.
Window.scrollByLines()
Scrolls the document by the given number of lines.
Window.scrollByPages()
Scrolls the current document by the specified number of pages.
Window.scrollTo()
Scrolls to a particular set of coordinates in the document.
Window.setCursor() (top-level XUL windows only)
Changes the cursor for the current window
Window.setImmediate()
Executes a function after the browser has finished other heavy tasks
Window.setResizable()
Toggles a user's ability to resize a window.
Window.sizeToContent()
Sizes the window according to its content.
Window.stop()
This method stops window loading.
Window.updateCommands()
Updates the state of commands of the current chrome window (UI).

Methods implemented from elsewhere

EventTarget.addEventListener()
Register an event handler to a specific event type on the window.
WindowOrWorkerGlobalScope.atob()
Decodes a string of data which has been encoded using base-64 encoding.
WindowOrWorkerGlobalScope.btoa()
Creates a base-64 encoded ASCII string from a string of binary data.
WindowOrWorkerGlobalScope.clearInterval()
Cancels the repeated execution set using WindowOrWorkerGlobalScope.setInterval().
WindowOrWorkerGlobalScope.clearTimeout()
Cancels the delayed execution set using WindowOrWorkerGlobalScope.setTimeout().
WindowOrWorkerGlobalScope.createImageBitmap()
Accepts a variety of different image sources, and returns a Promise which resolves to an ImageBitmap. Optionally the source is cropped to the rectangle of pixels originating at (sx, sy) with width sw, and height sh.
WindowOrWorkerGlobalScope.fetch()
Starts the process of fetching a resource from the network.
EventTarget.removeEventListener
Removes an event listener from the window.
WindowOrWorkerGlobalScope.setInterval()
Schedules a function to execute every time a given number of milliseconds elapses.
WindowOrWorkerGlobalScope.setTimeout()
Schedules a function to execute in a given amount of time.

Obsolete methods

Window.showModalDialog()
Displays a modal dialog. This method was removed completely in Chrome 43, and Firefox 55.

Event handlers

These are properties of the window object that can be set to establish event handlers for the various things that can happen in the window that might be of interest.

This interface inherits event handlers from the EventTarget interface and implements event handlers from WindowEventHandlers.

Note: Starting in Gecko 9.0, you can now use the syntax if ("onabort" in window) to determine whether or not a given event handler property exists. This is because event handler interfaces have been updated to be proper web IDL interfaces. See DOM event handlers for details.

Window.onappinstalled
Called when the page is installed as a webapp. See appinstalled event.
Window.onbeforeinstallprompt
An event handler property dispatched before a user is prompted to save a web site to a home screen on mobile.
Window.ondevicelight
An event handler property for any ambient light levels changes
Window.ondevicemotion
Called if accelerometer detects a change (For mobile devices)
Window.ondeviceorientation
Called when the orientation is changed (For mobile devices)
Window.ondeviceorientationabsolute  Chrome only
An event handler property for any device orientation changes.
Window.ondeviceproximity
An event handler property for device proximity event
Window.ongamepadconnected
Represents an event handler that will run when a gamepad is connected (when the gamepadconnected event fires).
Window.ongamepaddisconnected
Represents an event handler that will run when a gamepad is disconnected (when the gamepaddisconnected event fires).
Window.onmozbeforepaint
An event handler property for the MozBeforePaint event, which is sent before repainting the window if the event has been requested by a call to the Window.mozRequestAnimationFrame() method.
Window.onpaint
An event handler property for paint events on the window.
Window.onrejectionhandled
An event handler for handled Promise rejection events.
Window.onuserproximity
An event handler property for user proximity events.
Window.onvrdisplayconnect
Represents an event handler that will run when a compatible VR device has been connected to the computer (when the vrdisplayconnected event fires).
Window.onvrdisplaydisconnect
Represents an event handler that will run when a compatible VR device has been disconnected from the computer (when the vrdisplaydisconnected event fires).
Window.onvrdisplayactivate
Represents an event handler that will run when a display is able to be presented to (when the vrdisplayactivate event fires), for example if an HMD has been moved to bring it out of standby, or woken up by being put on.
Window.onvrdisplaydeactivate
Represents an event handler that will run when a display can no longer be presented to (when the vrdisplaydeactivate event fires), for example if an HMD has gone into standby or sleep mode due to a period of inactivity.
Window.onvrdisplayblur
Represents an event handler that will run when presentation to a display has been paused for some reason by the browser, OS, or VR hardware (when the vrdisplayblur event fires) — for example, while the user is interacting with a system menu or browser, to prevent tracking or loss of experience.
Window.onvrdisplayfocus
Represents an event handler that will run when presentation to a display has resumed after being blurred (when the vrdisplayfocus event fires).
Window.onvrdisplaypresentchange
represents an event handler that will run when the presenting state of a VR device changes — i.e. goes from presenting to not presenting, or vice versa (when the vrdisplaypresentchange event fires).

Event handlers implemented from elsewhere

GlobalEventHandlers.onabort
Called when the loading of a resource has been aborted, such as by a user canceling the load while it is still in progress
WindowEventHandlers.onafterprint
Called when the print dialog box is closed. See afterprint event.
WindowEventHandlers.onbeforeprint
Called when the print dialog box is opened. See beforeprint event.
WindowEventHandlers.onbeforeunload
An event handler property for before-unload events on the window.
GlobalEventHandlers.onblur
Called after the window loses focus, such as due to a popup.
GlobalEventHandlers.onchange
An event handler property for change events on the window.
GlobalEventHandlers.onclick
Called after the ANY mouse button is pressed & released
GlobalEventHandlers.ondblclick
Called when a double click is made with ANY mouse button.
GlobalEventHandlers.onclose
Called after the window is closed
GlobalEventHandlers.oncontextmenu
Called when the RIGHT mouse button is pressed
GlobalEventHandlers.onerror
Called when a resource fails to load OR when an error occurs at runtime. See error event.
GlobalEventHandlers.onfocus
Called after the window receives or regains focus. See focus events.
WindowEventHandlers.onhashchange
An event handler property for hashchange events on the window; called when the part of the URL after the hash mark ("#") changes.
GlobalEventHandlers.oninput
Called when the value of an <input> element changes
GlobalEventHandlers.onkeydown
Called when you begin pressing ANY key. See keydown event.
GlobalEventHandlers.onkeypress
Called when a key (except Shift, Fn, and CapsLock) is in pressed position. See keypress event.
GlobalEventHandlers.onkeyup
Called when you finish releasing ANY key. See keyup event.
WindowEventHandlers.onlanguagechange
An event handler property for languagechange events on the window.
GlobalEventHandlers.onload
Called after all resources and the DOM are fully loaded. WILL NOT get called when the page is loaded from cache, such as with back button.
WindowEventHandlers.onmessage
Is an EventHandler representing the code to be called when the message event is raised.
GlobalEventHandlers.onmousedown
Called when ANY mouse button is pressed.
GlobalEventHandlers.onmousemove
Called continously when the mouse is moved inside the window.
GlobalEventHandlers.onmouseout
Called when the pointer leaves the window.
GlobalEventHandlers.onmouseover
Called when the pointer enters the window
GlobalEventHandlers.onmouseup
Called when ANY mouse button is released
WindowEventHandlers.onoffline
Called when network connection is lost. See offline event.
WindowEventHandlers.ononline
Called when network connection is established. See online event.
WindowEventHandlers.onpagehide
Called when the user navigates away from the page, before the onunload event. See pagehide event.
WindowEventHandlers.onpageshow
Called after all resources and the DOM are fully loaded. See pageshow event.
WindowEventHandlers.onpopstate
Called when a back button is pressed.
GlobalEventHandlers.onreset
Called when a form is reset
GlobalEventHandlers.onresize
Called continuously as you are resizing the window.
GlobalEventHandlers.onscroll
Called when the scroll bar is moved via ANY means. If the resource fully fits in the window, then this event cannot be invoked
GlobalEventHandlers.onwheel
Called when the mouse wheel is rotated around any axis
GlobalEventHandlers.onselect
Called after text in an input field is selected
GlobalEventHandlers.onselectionchange
Is an EventHandler representing the code to be called when the selectionchange event is raised.
WindowEventHandlers.onstorage
Called when there is a change in session storage or local storage. See storage event
GlobalEventHandlers.onsubmit
Called when a form is submitted
WindowEventHandlers.onunhandledrejection
An event handler for unhandled Promise rejection events.
WindowEventHandlers.onunload
Called when the user navigates away from the page.

Constructors

See also the DOM Interfaces.

DOMParser
DOMParser can parse XML or HTML source stored in a string into a DOM DocumentDOMParser is specified in DOM Parsing and Serialization.
Window.GeckoActiveXObject
FIXME: NeedsContents
Image
Used for creating an HTMLImageElement.
Option
Used for creating an HTMLOptionElement
Window.QueryInterface
FIXME: NeedsContents
Window.StaticRange   Read only
Returns a StaticRange() constructor which creates a StaticRange object.
Worker
Used for creating a Web worker
Window.XMLSerializer
FIXME: NeedsContents
Window.XPCNativeWrapper
FIXME: NeedsContents
Window.XPCSafeJSObjectWrapper
FIXME: NeedsContents

Interfaces

See DOM Reference

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support 1Edge Full support 12Firefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support 18Edge Mobile Full support 12Firefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes
alertChrome Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Edge Full support YesFirefox Full support YesIE Full support YesOpera Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Opera 53, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Safari Full support YesWebView Android Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Chrome Android Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Edge Mobile Full support YesFirefox Android Full support YesOpera Android Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Opera 53, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Safari iOS Full support YesSamsung Internet Android Full support Yes
blurChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes
confirmChrome Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Edge Full support YesFirefox Full support YesIE Full support YesOpera Full support Yes
Notes
Full support Yes
Notes
Notes In Opera, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Safari Full support YesWebView Android Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Chrome Android Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Chrome 46, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Edge Mobile Full support YesFirefox Android Full support YesOpera Android Full support Yes
Notes
Full support Yes
Notes
Notes In Opera, this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Safari iOS Full support YesSamsung Internet Android Full support Yes
cancelAnimationFrameChrome Full support YesEdge Full support YesFirefox Full support 23
Full support 23
No support 11 — 23
Prefixed
Prefixed Implemented with the vendor prefix: moz
IE Full support 10Opera Full support 15Safari Full support 6.1
Full support 6.1
No support 6 — 6.1
Prefixed
Prefixed Implemented with the vendor prefix: webkit
WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 23
Full support 23
No support 14 — 23
Prefixed
Prefixed Implemented with the vendor prefix: moz
Opera Android Full support 33Safari iOS Full support 7.1Samsung Internet Android ?
cancelIdleCallback
Experimental
Chrome Full support 47Edge No support NoFirefox Full support 55
Full support 55
Full support 53
Disabled
Disabled From version 53: this feature is behind the dom.requestIdleCallback.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support YesSafari No support NoWebView Android Full support 47Chrome Android Full support 47Edge Mobile ? Firefox Android Full support 55
Full support 55
Full support 53
Disabled
Disabled From version 53: this feature is behind the dom.requestIdleCallback.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android ? Safari iOS No support NoSamsung Internet Android ?
clearImmediate
Non-standard
Chrome No support NoEdge ? Firefox No support NoIE Full support YesOpera No support NoSafari No support NoWebView Android No support NoChrome Android ? Edge Mobile ? Firefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android ?
closeChrome Full support YesEdge Full support YesFirefox Full support Yes
Notes
Full support Yes
Notes
Notes Starting in Firefox 46.0.1, Window.close() can no longer close windows that weren't opened by the same script. This is a security precaution.
IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support Yes
Notes
Full support Yes
Notes
Notes Starting in Firefox 46.0.1, Window.close() can no longer close windows that weren't opened by the same script. This is a security precaution.
Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
external
Deprecated
Chrome ? Edge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
focusChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes
ondevicelightChrome No support NoEdge Full support YesFirefox No support 22 — 60IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support 15Opera Android No support NoSafari iOS No support NoSamsung Internet Android ?
convertPointFromNodeToPage
Non-standard
Chrome Full support YesEdge Full support YesFirefox Full support 6IE ? Opera ? Safari Full support Yes
Alternate Name
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: webkitConvertPointFromNodeToPage
WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 6Opera Android No support NoSafari iOS Full support YesSamsung Internet Android ?
convertPointFromPageToNode
Non-standard
Chrome Full support 50
Notes
Full support 50
Notes
Notes For absolute values, use ondeviceorientationabsolute.
No support 7 — 50
Notes
Notes Provided absolute values, not relative.
Edge Full support YesFirefox Full support 6
Full support 6
No support 3.6 — 6
Alternate Name
Alternate Name Uses the non-standard name: onmozorientation
IE ? Opera ? Safari Full support Yes
Alternate Name
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: webkitConvertPointFromPageToNode
WebView Android Full support 50
Notes
Full support 50
Notes
Notes For absolute values, use ondeviceorientationabsolute.
No support ? — 50
Notes
Notes Provided absolute values, not relative.
Chrome Android Full support 50
Notes
Full support 50
Notes
Notes For absolute values, use ondeviceorientationabsolute.
No support ? — 50
Notes
Notes Provided absolute values, not relative.
Edge Mobile Full support YesFirefox Android Full support 6
Full support 6
No support 4 — 6
Alternate Name
Alternate Name Uses the non-standard name: onmozorientation
Opera Android No support NoSafari iOS Full support YesSamsung Internet Android ?
ondeviceorientationabsolute
Non-standard
Chrome Full support 50Edge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android Full support 50Chrome Android Full support 50Edge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
ondeviceproximityChrome No support NoEdge ? Firefox No support ? — 60IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support 15Opera Android No support NoSafari iOS No support NoSamsung Internet Android ?
ongamepadconnectedChrome Full support 35
Full support 35
No support 21 — 35
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge Full support YesFirefox Full support 29IE No support NoOpera Full support 22
Full support 22
No support 15 — 22
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Safari Full support 10.1WebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android Full support 32Opera Android No support NoSafari iOS No support NoSamsung Internet Android Full support Yes
ongamepaddisconnectedChrome Full support 35
Full support 35
No support 21 — 35
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge Full support YesFirefox Full support 29IE No support NoOpera Full support 22
Full support 22
No support 15 — 22
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Safari Full support 10.1WebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android Full support 32Opera Android No support NoSafari iOS No support NoSamsung Internet Android Full support Yes
onpaint
Non-standard
Chrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android Full support YesChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
onuserproximityChrome No support NoEdge ? Firefox Full support YesIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support 15 — 60Opera Android No support NoSafari iOS No support NoSamsung Internet Android ?
onvrdisplayactivate
Experimental
Chrome No support NoEdge No support NoFirefox Full support 55
Notes
Full support 55
Notes
Notes Windows support was enabled in Firefox 55.
Full support 64
Notes
Notes macOS support was enabled in Firefox 64.
IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android Full support 55Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
onvrdisplayblur
Experimental
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
onvrdisplayconnect
Experimental
Chrome No support No
Disabled
No support No
Disabled
Disabled This feature is behind the WebVR preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.
Edge ? Firefox Full support 55
Notes
Full support 55
Notes
Notes Windows support was enabled in Firefox 55.
Full support 64
Notes
Notes macOS support was enabled in Firefox 64.
IE No support NoOpera No support NoSafari No support NoWebView Android ? Chrome Android Full support Yes
Notes
Full support Yes
Notes
Notes Chrome for Android 56 supports only Google Daydream View.
Notes Chrome for Android 57 adds support for Google Cardboard.
Edge Mobile ? Firefox Android Full support 55Opera Android No support NoSafari iOS No support NoSamsung Internet Android Full support Yes
Notes
Full support Yes
Notes
Notes Supported on Samsung Internet for GearVR.
onvrdisplaydeactivate
Experimental
Chrome No support NoEdge No support NoFirefox Full support 55
Notes
Full support 55
Notes
Notes Windows support was enabled in Firefox 55.
Full support 64
Notes
Notes macOS support was enabled in Firefox 64.
IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android Full support 55Opera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
onvrdisplaydisconnect
Experimental
Chrome No support No
Disabled
No support No
Disabled
Disabled This feature is behind the WebVR preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.
Edge ? Firefox Full support 55
Notes
Full support 55
Notes
Notes Windows support was enabled in Firefox 55.
Full support 64
Notes
Notes macOS support was enabled in Firefox 64.
IE No support NoOpera No support NoSafari No support NoWebView Android ? Chrome Android Full support 56
Notes
Full support 56
Notes
Notes Chrome for Android 56 supports only Google Daydream View.
Notes Chrome for Android 57 adds support for Google Cardboard.
Edge Mobile ? Firefox Android Full support 55Opera Android No support NoSafari iOS No support NoSamsung Internet Android Full support Yes
Notes
Full support Yes
Notes
Notes Supported on Samsung Internet for GearVR.
onvrdisplayfocus
Experimental
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
onvrdisplaypresentchange
Experimental
Chrome Full support 65
Disabled
Full support 65
Disabled
Disabled From version 65: this feature is behind the WebVR preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.
Edge ? Firefox Full support 55
Notes
Full support 55
Notes
Notes Windows support was enabled in Firefox 55.
Full support 64
Notes
Notes macOS support was enabled in Firefox 64.
IE No support NoOpera No support NoSafari No support NoWebView Android ? Chrome Android Full support 56
Notes
Full support 56
Notes
Notes Chrome for Android 56 supports only Google Daydream View.
Notes Chrome for Android 57 adds support for Google Cardboard.
Edge Mobile ? Firefox Android Full support 55Opera Android No support NoSafari iOS No support NoSamsung Internet Android Full support Yes
Notes
Full support Yes
Notes
Notes Supported on Samsung Internet for GearVR.
cryptoChrome Full support 37Edge Full support 12Firefox Full support 34IE Full support 11
Prefixed
Full support 11
Prefixed
Prefixed Implemented with the vendor prefix: ms
Opera Full support 24Safari Full support 6.1WebView Android Full support 37Chrome Android Full support 37Edge Mobile Full support 12Firefox Android Full support 34Opera Android Full support 24Safari iOS Full support 6.1Samsung Internet Android Full support Yes
customElementsChrome Full support 54Edge No support No
Notes
No support No
Notes
Notes Under consideration
Firefox Full support 63
Full support 63
No support 59 — 65
Disabled
Disabled From version 59 until version 65 (exclusive): this feature is behind the dom.webcomponents.customelements.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No support ? — 59
Disabled
Disabled Until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.customelements.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support 41Safari Full support 10.1WebView Android Full support 54Chrome Android Full support 54Edge Mobile No support No
Notes
No support No
Notes
Notes Under consideration
Firefox Android Full support 63
Full support 63
No support 59 — 65
Disabled
Disabled From version 59 until version 65 (exclusive): this feature is behind the dom.webcomponents.customelements.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No support ? — 59
Disabled
Disabled Until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.customelements.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 41Safari iOS Full support 10.1Samsung Internet Android ?
devicePixelRatioChrome Full support YesEdge Full support YesFirefox Full support 49IE Full support 11Opera Full support 41Safari Full support 9.1WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android ? Opera Android Full support YesSafari iOS Full support 9.3Samsung Internet Android ?
dialogArguments
DeprecatedNon-standard
Chrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
documentChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes
eventChrome Full support YesEdge Full support YesFirefox Full support 63
Disabled
Full support 63
Disabled
Disabled From version 63: this feature is behind the dom.window.event.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE Full support YesOpera Full support YesSafari Full support YesWebView Android ? Chrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 63
Disabled
Full support 63
Disabled
Disabled From version 63: this feature is behind the dom.window.event.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
frameElementChrome Full support YesEdge Full support YesFirefox Full support 1IE Full support YesOpera Full support YesSafari Full support YesWebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
framesChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes
fullScreen
Non-standard
Chrome No support NoEdge ? Firefox Full support 3IE No support NoOpera ? Safari ? WebView Android ? Chrome Android No support NoEdge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
getAttention
Non-standard
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android ?
getAttentionWithCycleCount
Non-standard
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android ?
getComputedStyleChrome Full support YesEdge Full support YesFirefox Full support Yes
Notes
Full support Yes
Notes
Notes Before version 62 this function returned null when called on a Window with no presentation (e.g. an iframe with display: none; set). Since 62 it returns a CSSStyleDeclaration object with length 0, containing empty strings (bug 1467722; also see bug 1471231 for further work).
IE Full support 9Opera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support Yes
Notes
Full support Yes
Notes
Notes Before version 62 this function returned null when called on a Window with no presentation (e.g. an iframe with display: none; set). Since 62 it returns a CSSStyleDeclaration object with length 0, containing empty strings (bug 1467722; also see bug 1471231 for further work).
Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
getDefaultComputedStyle
Non-standard
Chrome No support NoEdge No support NoFirefox Full support 19IE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android Full support 19Opera Android No support NoSafari iOS No support NoSamsung Internet Android ?
getSelectionChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support 9Opera Full support YesSafari Full support YesWebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android Full support 55
Notes
Full support 55
Notes
Notes No support for selection events.
Opera Android Full support 37Safari iOS Full support 5.1
Notes
Full support 5.1
Notes
Notes No support for selection start.
Samsung Internet Android ?
globalStorage
DeprecatedNon-standard
Chrome No support NoEdge ? Firefox No support ? — 13IE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
historyChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
home
DeprecatedNon-standard
Chrome No support NoEdge ? Firefox Full support 1IE No support NoOpera Full support YesSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android ? Opera Android ? Safari iOS No support NoSamsung Internet Android ?
innerHeightChrome Full support 1Edge Full support YesFirefox Full support 1
Full support 1
No support 4 — 24
Notes
Notes This property was buggy and could give a wrong value before page load in certain circumstances, see bug 641188.
IE Full support 9Opera Full support 9Safari Full support 3WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4
Full support 4
No support 4 — 24
Notes
Notes This property was buggy and could give a wrong value before page load in certain circumstances, see bug 641188.
Opera Android Full support 9Safari iOS Full support 3Samsung Internet Android ?
innerWidthChrome Full support 1Edge Full support YesFirefox Full support 1
Full support 1
No support 4 — 24
Notes
Notes This property was buggy and could give a wrong value before page load in certain circumstances, see bug 641188.
IE Full support 9Opera Full support 9Safari Full support 3WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4
Full support 4
No support 4 — 24
Notes
Notes This property was buggy and could give a wrong value before page load in certain circumstances, see bug 641188.
Opera Android Full support 9Safari iOS Full support 3Samsung Internet Android ?
isSecureContextChrome Full support YesEdge Full support YesFirefox Full support 49IE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 49Opera Android ? Safari iOS ? Samsung Internet Android ?
lengthChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
localStorageChrome Full support 4Edge Full support YesFirefox Full support 3.5IE Full support 8Opera Full support 10.5Safari Full support 4WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support 11Safari iOS Full support 3.2Samsung Internet Android ?
locationChrome Full support YesEdge Full support YesFirefox Full support Yes
Notes
Full support Yes
Notes
Notes Before Firefox 57, single quotes contained in URLs were escaped when accessed via URL APIs. See bug 1386683.
IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support Yes
Notes
Full support Yes
Notes
Notes Before Firefox 57, single quotes contained in URLs were escaped when accessed via URL APIs. See bug 1386683.
Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
locationbarChrome Full support YesEdge ? Firefox ? IE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
matchMediaChrome Full support 9Edge Full support YesFirefox Full support 6IE Full support 10Opera Full support 12.1Safari Full support 5.1WebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android Full support 6Opera Android Full support 12.1Safari iOS Full support 5Samsung Internet Android ?
maximize
Non-standard
Chrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
menubarChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
minimize
Non-standard
Chrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
moveByChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
moveToChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
mozAnimationStartTime
Non-standard
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
mozInnerScreenX
Non-standard
Chrome No support NoEdge No support NoFirefox Full support YesIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android Full support YesOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
mozInnerScreenY
Non-standard
Chrome No support NoEdge No support NoFirefox Full support YesIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android Full support YesOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
mozPaintCount
Non-standard
Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
nameChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
navigatorChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
onappinstalledChrome Full support YesEdge ? Firefox Full support 49
Disabled
Full support 49
Disabled
Disabled From version 49: this feature is behind the dom.manifest.onappinstall preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE ? Opera ? Safari ? WebView Android ? Chrome Android Full support YesEdge Mobile ? Firefox Android Full support 49
Disabled
Full support 49
Disabled
Disabled From version 49: this feature is behind the dom.manifest.onappinstall preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android ? Safari iOS ? Samsung Internet Android ?
onbeforeinstallpromptChrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
ondevicemotionChrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
ondeviceorientationChrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
openChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
openDialog
Non-standard
Chrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
openerChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
orientation
Deprecated
Chrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
outerHeightChrome Full support 1Edge Full support YesFirefox Full support 1IE Full support 9Opera Full support 9Safari Full support 3WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support 9Safari iOS Full support 3Samsung Internet Android ?
outerWidthChrome Full support 1Edge Full support YesFirefox Full support 1IE Full support 9Opera Full support 9Safari Full support 3WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 4Opera Android Full support 9Safari iOS Full support 3Samsung Internet Android ?
pageXOffsetChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support 9Opera Full support YesSafari Full support YesWebView Android ? Chrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
pageYOffsetChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support 9Opera Full support YesSafari Full support YesWebView Android ? Chrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
parentChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
performanceChrome Full support 6Edge Full support YesFirefox Full support 7IE Full support 9Opera Full support 15Safari Full support 8WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 7Opera Android Full support 15Safari iOS Full support 9Samsung Internet Android ?
personalbarChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
pkcs11
DeprecatedNon-standard
Chrome No support NoEdge ? Firefox No support ? — 29IE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support ? — 29Opera Android ? Safari iOS ? Samsung Internet Android ?
postMessageChrome Full support 1Edge Full support YesFirefox Full support 8
Notes
Full support 8
Notes
Notes Supports sending File and FileList objects between windows. This is only allowed if the recipient's principal is contained within the sender's principal for security reasons.
Full support 6
Notes
Notes The message parameter is serialized using the structured clone algorithm. This means you can pass a broad variety of data objects safely to the destination window without having to serialize them yourself.
No support ? — 6
Notes
Notes The message parameter must be a string.
IE Full support 10
Notes
Full support 10
Notes
Notes IE10 had an important limitation: see this article for details.
No support 8 — 10
Notes
Notes Support only for <frame> and <iframe>.
Opera Full support 9.5Safari Full support 4WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 8
Notes
Full support 8
Notes
Notes Supports sending File and FileList objects between windows. This is only allowed if the recipient's principal is contained within the sender's principal for security reasons.
Full support 6
Notes
Notes The message parameter is serialized using the structured clone algorithm. This means you can pass a broad variety of data objects safely to the destination window without having to serialize them yourself.
No support ? — 6
Notes
Notes The message parameter must be a string.
Opera Android Full support YesSafari iOS Full support Yes
Notes
Full support Yes
Notes
Notes For security reasons, to work properly on Safari, construct using document.getElementById('your-frame').contentWindow.
Samsung Internet Android ?
printChrome Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Chrome 46.0 this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Edge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
promptChrome Full support Yes
Notes
Full support Yes
Notes
Notes Starting with Chrome 46.0 this method is blocked inside an <iframe> unless its sandbox attribute has the value allow-modals.
Edge ? Firefox Full support YesIE Full support Yes
Notes
Full support Yes
Notes
Notes This function has no effect in the Modern UI/Metro version of Internet Explorer for Windows 8. It does not display a prompt to the user, and always returns undefined. It is not clear whether this is a bug or intended behavior. Desktop versions of IE do implement this function.
Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
releaseEvents
DeprecatedNon-standard
Chrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
requestAnimationFrameChrome Full support 24
Full support 24
Full support 10
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge Full support YesFirefox Full support 23
Notes
Full support 23
Notes
Notes Callback parameter is a DOMHighResTimestamp. This means ten microsecond precision and zero time as performance.now().
No support 11 — 42
Prefixed Notes
Prefixed Implemented with the vendor prefix: moz
Notes Callback parameter is a DOMTimestamp. This means millisecond precision and zero time as Date.now().
No support 4 — 11
Prefixed Notes
Prefixed Implemented with the vendor prefix: moz
Notes Could be called with no input parameters.
IE Full support 10Opera Full support 15
Full support 15
Full support Yes
Prefixed
Prefixed Implemented with the vendor prefix: o
Safari Full support 6.1
Full support 6.1
Full support 6
Prefixed
Prefixed Implemented with the vendor prefix: webkit
WebView Android Full support YesChrome Android Full support 25
Full support 25
Full support 18
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge Mobile Full support YesFirefox Android Full support 23
Full support 23
No support 14 — 42
Prefixed
Prefixed Implemented with the vendor prefix: moz
Opera Android Full support 15Safari iOS Full support 7.1
Full support 7.1
Full support 6.1
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Samsung Internet Android ?
requestFileSystem
Non-standard
Chrome Full support 13
Prefixed
Full support 13
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge Full support YesFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android ? Chrome Android Full support Yes
Prefixed
Full support Yes
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge Mobile Full support YesFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android ?
requestIdleCallback
Experimental
Chrome Full support 47Edge No support NoFirefox Full support 55
Notes
Full support 55
Notes
Notes Enabled by default.
No support 53 — 55
Notes
Notes Implemented but disabled by default.
IE No support NoOpera Full support 34Safari No support NoWebView Android Full support 47Chrome Android Full support 47Edge Mobile No support NoFirefox Android Full support 55
Notes
Full support 55
Notes
Notes Enabled by default.
No support 53 — 55
Notes
Notes Implemented but disabled by default.
Opera Android ? Safari iOS No support NoSamsung Internet Android ?
resizeByChrome Full support YesEdge ? Firefox Full support Yes
Notes
Full support Yes
Notes
Notes Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn’t created by window.open or contains more than one tab. See here for more details.
IE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
resizeToChrome Full support YesEdge ? Firefox Full support Yes
Notes
Full support Yes
Notes
Notes Since Firefox 7, it's no longer possible for a web site to change the default size of a window in a browser if the window wasn’t created by window.open or contains more than one tab. See here for more details.
IE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
restoreChrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
returnValueChrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
routeEvent
DeprecatedNon-standard
Chrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
screenChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
screenLeftChrome Full support YesEdge Full support YesFirefox Full support 64IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 64Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes
screenTopChrome Full support YesEdge Full support YesFirefox Full support 64IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support 64Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes
screenXChrome Full support YesEdge Full support YesFirefox Full support Yes
Notes
Full support Yes
Notes
Notes Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.
IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support Yes
Notes
Full support Yes
Notes
Notes Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.
Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
screenYChrome Full support YesEdge Full support YesFirefox Full support Yes
Notes
Full support Yes
Notes
Notes Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.
IE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support Yes
Notes
Full support Yes
Notes
Notes Before Firefox 28, Gecko was using device pixels instead of CSS pixels; in other words, it was assuming a value of screenPixelsPerCSSPixel of 1 for any device.
Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
scrollChrome Full support YesEdge Full support YesFirefox Full support YesIE ? Opera ? Safari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS Full support YesSamsung Internet Android ?
scrollbarsChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS Full support YesSamsung Internet Android ?
scrollByChrome Full support YesEdge Partial support Partial
Notes
Partial support Partial
Notes
Notes Only scrollBy(x-coord, y-coord) is supported.
Firefox Full support YesIE Partial support 11
Notes
Partial support 11
Notes
Notes Only scrollBy(x-coord, y-coord) is supported.
Opera ? Safari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS Full support YesSamsung Internet Android ?
scrollByLines
Non-standard
Chrome No support NoEdge ? Firefox Full support YesIE ? Opera ? Safari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS No support NoSamsung Internet Android ?
scrollByPages
Non-standard
Chrome No support NoEdge ? Firefox Full support YesIE ? Opera ? Safari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS No support NoSamsung Internet Android ?
scrollMaxX
Non-standard
Chrome No support NoEdge ? Firefox Full support YesIE ? Opera ? Safari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS No support NoSamsung Internet Android ?
scrollMaxY
Non-standard
Chrome No support NoEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
scrollToChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android ? Safari iOS Full support YesSamsung Internet Android Full support Yes
scrollXChrome Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Edge Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Firefox Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
IE No support No
No support No
Full support 9
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Opera Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Safari Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
WebView Android Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Chrome Android Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Edge Mobile Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Firefox Android Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Opera Android ?
?
?
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Safari iOS ?
?
?
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
Samsung Internet Android ?
?
?
Alternate Name
Alternate Name Uses the non-standard name: pageXOffset
scrollYChrome Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Edge Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Firefox Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
IE No support No
No support No
Full support 9
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Opera Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Safari Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
WebView Android Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Chrome Android Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Edge Mobile Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Firefox Android Full support Yes
Full support Yes
Full support Yes
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Opera Android ?
?
?
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Safari iOS Full support Yes
Full support Yes
?
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
Samsung Internet Android ?
?
?
Alternate Name
Alternate Name Uses the non-standard name: pageYOffset
selfChrome Full support YesEdge Full support YesFirefox Full support YesIE Full support YesOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?
sessionStorageChrome Full support 5Edge Full support YesFirefox Full support 2IE Full support 8Opera Full support 10.5Safari Full support 4WebView Android Full support YesChrome Android Full support YesEdge Mobile Full support YesFirefox Android Full support YesOpera Android Full support 11Safari iOS Full support 3.2Samsung Internet Android ?
setCursor
Non-standard
Chrome No support NoEdge ? Firefox No support NoIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android No support NoOpera Android ? Safari iOS ? Samsung Internet Android ?
setImmediate
Non-standard
Chrome No support NoEdge Full support YesFirefox No support NoIE Full support 10Opera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoEdge Mobile Full support YesFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android ?
setResizable
Non-standard
Chrome No support NoEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
showModalDialog
DeprecatedNon-standard
Chrome No support ? — 43Edge No support NoFirefox No support 3 — 56IE Full support 4Opera No support NoSafari Full support 5.1
Notes
Full support 5.1
Notes
Notes See WebKit bug 151885 for possible future removal from Safari.
WebView Android No support NoChrome Android No support NoEdge Mobile No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No
sidebar
DeprecatedNon-standard
Chrome No support NoEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
sizeToContent
Non-standard
Chrome No support NoEdge ? Firefox Full support Yes
Full support Yes
Full support 20
Notes
Notes The mimimal size is clamped to prevent the window from being too small for the user to interact with.
IE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support Yes
Notes
Full support Yes
Notes
Notes This method has no effect as a page is always in a tab.
Opera Android ? Safari iOS ? Samsung Internet Android ?
speechSynthesisChrome Full support 33Edge Full support YesFirefox Full support 49IE No support NoOpera ? Safari Full support 7WebView Android ? Chrome Android Full support YesEdge Mobile Full support YesFirefox Android No support NoOpera Android No support NoSafari iOS Full support 7.1Samsung Internet Android ?
statusChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
statusbarChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
stopChrome Full support YesEdge ? Firefox Full support YesIE No support NoOpera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
toolbarChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
topChrome Full support YesEdge Full support YesFirefox Full support Yes
Notes
Full support Yes
Notes
Notes Starting in Firefox 6, this property is read only, as defined by the standard.
IE Full support YesOpera Full support YesSafari Full support YesWebView Android ? Chrome Android ? Edge Mobile Full support YesFirefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?
updateCommands
Non-standard
Chrome No support NoEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android No support NoChrome Android No support NoEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?
visualViewport
Experimental
Chrome Full support 60Edge ? Firefox Full support 63
Disabled
Full support 63
Disabled
Disabled From version 63: this feature is behind the dom.visualviewport.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE ? Opera Full support 47Safari ? WebView Android Full support 60Chrome Android Full support 60Edge Mobile ? Firefox Android Full support 63
Disabled
Full support 63
Disabled
Disabled From version 63: this feature is behind the dom.visualviewport.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 47Safari iOS ? Samsung Internet Android ?
windowChrome Full support YesEdge ? Firefox Full support YesIE ? Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Partial support  
Partial support
No support  
No support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.
See implementation notes.
See implementation notes.
User must explicitly enable this feature.
User must explicitly enable this feature.
Uses a non-standard name.
Uses a non-standard name.
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.

See also

Document Tags and Contributors

Contributors to this page: Sheppy
Last updated by: Sheppy,