With these properties, the malicious parent can execute UI redressing attacks, such as clickjacking. Additionally, the hostile parent can decide on the size, position, and styling of the frame. Regardless of the Same Origin Policy, browsers always allow a malicious parent to frame a victim application. Browsers have always prevented such behavior and righteously so! In essence, this means that a page running on cannot load in an iframe and start inspecting its contents. The browser’s ” text=”Same Origin Policy” %} will prevent direct interaction between the frame and its parent if they are cross-origin. Love it! So why does it matter that an application tells the browser not to load it in a frame?īy itself, it doesn’t really matter. You’re still reading after you got the TL DR version. Therefore, the recommended best practice is to disable framing by sending the following headers in the response.Ĭontent-Security-Policy: frame-ancestors 'none' Modern frontend applications typically do not rely on being framed as part of other applications.
#Frame vs iframe full#
If you want more context or need an overview of more detailed configuration options, you will want to read the full article. This section outlines current best practices to configure framing policies for modern frontend applications and APIs in contemporary browsers. This article gives an overview of the threats, discusses recent changes in framing restriction mechanisms, and provides concrete recommendations to secure modern web applications.Ĭontent Security Policy (CSP) Best practices for framing policies They even threaten APIs, which have nothing to do with iframes and web pages.
Current best practices to restrict framing in the browserįrame-based attacks such as clickjacking and UI redressing may be obscure, but they are (still) very real.
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