electron/docs/api/window-open.md

window.open function

When window.open is called to create a new window in web page, a new instance of BrowserWindow will be created for the url, and a proxy will be returned to window.open to let the page have limited control over it.

The proxy only has some limited standard functionality implemented to be compatible with traditional web pages, for full control of the created window you should create a BrowserWindow directly.

window.open(url, [frameName[, features]])

• url String
• frameName String
• features String

Creates a new window and returns an instance of BrowserWindowProxy class.

window.opener.postMessage(message, targetOrigin)

• message String
• targetOrigin String

Sends a message to the parent window with the specified origin or * for no origin preference.

Class: BrowserWindowProxy

BrowserWindowProxy.blur()

Removes focus from the child window.

BrowserWindowProxy.close()

Forcefully closes the child window without calling its unload event.

BrowserWindowProxy.closed

Set to true after the child window gets closed.

BrowserWindowProxy.eval(code)

• code String

Evaluates the code in the child window.

BrowserWindowProxy.focus()

Focuses the child window (brings the window to front).

BrowserWindowProxy.postMessage(message, targetOrigin)

• message String
• targetOrigin String

Sends a message to the child window with the specified origin or * for no origin preference.

In addition to these methods, the child window implements window.opener object with no properties and a single method: