Communication between page frame windows

One, two pages of the same domain

The string can be queried through the client store (front-end technology only, regardless of the background) or through a URL.

Two, two pages of different domains

Query strings by URL.

Third, the window of the same domain

A window opened with window.open () returns a reference to the Window object that opens the Windows. The opener object points to the window that opens the current window with the open method.

var newwindow = window.open (' parent.html ', ' parent '= ' Your code here ';
Manipulating the original window
NewWindow.opener.document.body.innerHTML = ' Oldwindow ';

Four, the same domain iframe

A nested iframe in a page.

Window.frames Collection saves all the IFRAME order from left to right, top to bottom in the page.

Top

Parent

_self

Communication between page frame windows