fix: correct cross-window-communication article.md en#3939
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ramgudimetla07-sketch
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May 29, 2026
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| The "Same Origin" policy states that: | ||
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| - if we have a reference to another window, e.g. a popup created by `window.open` or a window inside `<iframe>`, and that window comes from the same origin, then we have full access to that window. |
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If we have a reference to another window (for example, a popup created using window.open() or a window inside an <iframe>), and that window belongs to the same origin, then we have full access to it.
Otherwise, if the window belongs to a different origin, we cannot access its contents such as variables, the DOM, or the document object. The only exception is the location object: we can change it (which allows us to redirect the user), but we cannot read it. This restriction prevents information leaks about the user’s current page or data.
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Cross-window communication
While editing the ru-version, it turned out that it's more natural in some respects.
It avoids the word
tag– DOM entities are involved here,sometimes it's more accurately stated that we're talking about objects,
the possibility of getting
errorornullwithanother originis indicated, and so on.But both couldn't avoid confusing newcomers' minds by misunderstanding the terms event and its handler in DOM property
or providing unconfirmed information about short syntax not working, etc.
So let's try to combine the best of each of these versions✅