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The iframe in HTML5 has a sandbox attribute. [3] The attribute's value is a set of allowed capabilities for the iframe's content. If the value is empty or not set, the iframe's content will not execute JavaScript, and won't allow top-level navigation.
Unlike iframes or XMLHttpRequest objects, script tags can be pointed at any URI, and JavaScript code in the response will be executed in the current HTML document. This creates a potential security risk for both servers involved, though the risk to the data provider (in our case, the Comet server) can be avoided using JSONP .
The iframe element is used inline within a normal HTML body, and defines the initial content and name similarly to the frame element. Any text inside an <iframe></iframe> tag pair will be displayed in browsers that do not understand the iframe tag.
The webpage can be modified by JavaScript to dynamically display (and allow the user to interact with) the new information. The built-in XMLHttpRequest object is used to execute Ajax on webpages, allowing websites to load content onto the screen without refreshing the page. Ajax is not a new technology, nor is it a new language.
The Document Object Model manipulated through JavaScript to dynamically display and interact with the information presented; A transport layer. Different technologies may be used, though using a script tag or an iframe is used the most because it has better browser support than XMLHttpRequest; A data format.
IFrame may refer to: iframe, an HTML element; I-frame, a type of video frame in video compression "I-Frames", a shorthand term used to reference the video game term ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 15 December 2024. High-level programming language Not to be confused with Java (programming language), Javanese script, or ECMAScript. JavaScript Screenshot of JavaScript source code Paradigm Multi-paradigm: event-driven, functional, imperative, procedural, object-oriented Designed by Brendan Eich of ...
other frames or iframes within the sender document's window; windows the sender document explicitly opens through JavaScript calls; the parent window of the sender document; the window which opened the sender document; The message event being received has the following attributes: data – The data, or actual content, of the incoming message.