JS determines whether the current page is an iframe or a popup window

Little scum · Posted on 7/30/2022 10:27:58 AM

window

When applying a page with a frameset or iframe, there are several window concepts

window.self: is a reference to the current window itself. Equivalent to window and window.self
window.parent: Returns to the parent window.
window.top: Return to the top-level parent window (some windows have several layers of framesets or iframes)

JS determines if the current page is an Iframe window

When the current page does not have a parent window, both window.parent and window.top return a reference to the current window.
You can tell if the current page is in an iframe by telling if window.parent or window.top is the current window.

Login is visible.

or

Login is visible.

JS determines whether the current page is a popup window

Determine whether the current window is opened via window.open.

Some browserswill set window.opener to window in some cases. This is the most reliable pop-up check I use right now.

Login is visible.

Summary

Determine whether it is a top-level window or an iframe or popup window

Login is visible.

(End)

Little scum · Posted on 7/30/2022 10:42:58 AM

Login is visible.

Little scum · Posted on 7/30/2022 10:08:00 PM

HTML5 PostMessage cross-window communication
https://www.itsvse.com/thread-10343-1-1.html

Zmoli775 · Posted on 8/1/2022 11:01:15 AM

Useful this has learned;

[JavaScript] JS determines whether the current page is an iframe or a popup window

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