electronjs.org-new/docs/latest/tutorial/web-embeds.md

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Web Embeds	If you want to embed (third-party) web content in an Electron BrowserWindow, there are three options available to you: <iframe> tags, <webview> tags, and WebContentsView. Each one offers slightly different functionality and is useful in different situations. To help you choose between these, this guide explains the differences and capabilities of each option.	web-embeds	false

Web Embeds

Overview

If you want to embed (third-party) web content in an Electron BrowserWindow, there are three options available to you: <iframe> tags, <webview> tags, and WebContentsView. Each one offers slightly different functionality and is useful in different situations. To help you choose between these, this guide explains the differences and capabilities of each option.

Iframes

Iframes in Electron behave like iframes in regular browsers. An <iframe> element in your page can show external web pages, provided that their Content Security Policy allows it. To limit the number of capabilities of a site in an <iframe> tag, it is recommended to use the sandbox attribute and only allow the capabilities you want to support.

WebViews

Important Note: we do not recommend you to use WebViews, as this tag undergoes dramatic architectural changes that may affect stability of your application. Consider switching to alternatives, like iframe and Electron's WebContentsView, or an architecture that avoids embedded content by design.

WebViews are based on Chromium's WebViews and are not explicitly supported by Electron. We do not guarantee that the WebView API will remain available in future versions of Electron. To use <webview> tags, you will need to set webviewTag to true in the webPreferences of your BrowserWindow.

WebView is a custom element (<webview>) that will only work inside Electron. They are implemented as an "out-of-process iframe". This means that all communication with the <webview> is done asynchronously using IPC. The <webview> element has many custom methods and events, similar to webContents, that provide you with greater control over the content.

Compared to an <iframe>, <webview> tends to be slightly slower but offers much greater control in loading and communicating with the third-party content and handling various events.

WebContentsView

WebContentsViews are not a part of the DOM—instead, they are created, controlled, positioned, and sized by your Main process. Using WebContentsView, you can combine and layer many pages together in the same BaseWindow.

WebContentsViews offer the greatest control over their contents, since they implement the webContents similarly to how BrowserWindow does it. However, as WebContentsViews are not elements inside the DOM, positioning them accurately with respect to DOM content requires coordination between the Main and Renderer processes.