Window.showModalDialog()

Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

This feature has been removed. Please fix your Web sites and applications.

This method was removed in Chrome 43 and Firefox 56.

The Window.showModalDialog() created and displayed a modal dialog box containing a specified HTML document.

Syntax

returnVal = window.showModalDialog(uri[, arguments][, options]);
  • returnVal holds the returnValue property as set by the document specified by uri.
  • uri is the URL of the document to display in the dialog.
  • arguments is an optional variant containing values passed to the dialog; these are made available in the window object's window.dialogArguments property.
  • options is an optional string specifying window ornamentation for the dialog, using one or more semicolon delimited values:
Syntax Description
center: {on | off | yes | no | 1 | 0 } If on, yes, or 1, the dialog window is centered on the desktop; otherwise it's hidden. Default is yes.
dialogheight: height The height of the dialog box in pixels.
dialogleft: left Distance of the dialog box from the left edge of the desktop.
dialogwidth: width The width of the dialog box in pixels.
dialogtop: top Distance of the dialog box from the top edge of the desktop.
resizable: {on | off | yes | no | 1 | 0 } If this argument's value is on, yes, or 1, the dialog window can be resized by the user; otherwise its size is fixed. The default value is no.
scroll: {on | off | yes | no | 1 | 0 } If on, yes, or 1, the dialog window has scroll bars; otherwise its size is fixed. Default is no.
Note: Firefox does not implement the dialogHide, edge, status, or unadorned arguments.

Examples

Try out showModalDialog().

Notes

showModalDialog() was briefly standardized as part of HTML5. The third argument for additional options was not present in the HTML5 version.

Specification

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
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 NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No

Legend

Full support  
Full support
No support  
No support
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.

See also