Don't repeat yourself. Applying DRY DRY vs WET solutions
W3C SVG Working Group. SVG is a widely-deployed royalty-free graphics format developed and maintained by the W3C SVG Working Group.
The SVG specification is an open standard developed by the World Wide Web Consortium (W3C) since 1999. SVG images and their behaviors are defined in XML text files. This means that they can be searched, indexed, scripted, and compressed. As XML files, SVG images can be created and edited with any text editor, but are more often created with drawing software. Comparison of layout engines (Scalable Vector Graphics) The following tables compare SVG compatibility and support for a number of layout engines.
Please see the individual products' articles for further information. Unless otherwise specified in footnotes, comparisons are based on the stable versions without any add-ons, extensions or external programs. Explanation of the tables Favicon. Wikipedia's favicon, shown in an older version of Firefox (from 2008) History In March 1999, Microsoft released Internet Explorer 5, which supported favicons for the first time. Originally, the favicon was a file called favicon.ico placed in the root directory (e.g., of a web site.
It was used in Internet Explorer's favorites (bookmarks) and next to the URL in the address bar if the page was bookmarked. A side effect was that the number of visitors who have bookmarked the page could be estimated by the requests of the favicon. This side effect no longer works, as all modern browsers load the favicon file to display in their web address bar, regardless of whether the site is bookmarked. Standardization Ajax (programming) Ajax is not a single technology, but a group of technologies.
20090106: The WebApps WG Drives DOM Specifications. The W3C Web Applications Working Group has taken over responsibility for the Document Object Model specifications, including a new revision of DOM Level 3 Events, a new DOM Core specification, and potentially any errata on older DOM specifications. Discussion can be directed to either the firstname.lastname@example.org or the email@example.com mailing lists. 20080122: The Document Object Model Activity is closed.
The Document Object Model Working Group was closed in the Spring of 2004, after the completion of the DOM Level 3 Recommendations. Several W3C Working Groups have since taken the lead in maintaining and continuing to develop standard APIs for the Web since then; HTML, SVG, CSS, or WebAPI being among them. Document Object Model. Hierarchy of objects in an example HTML DOM—Document Object Model Legacy DOM
XMLHttpRequest Level 2. Abstract The XMLHttpRequest specification defines an API that provides scripted client functionality for transferring data between a client and a server.
"Cross-domain" AJAX requests are forbidden by default because of their ability to perform advanced requests (POST, PUT, DELETE and other types of HTTP requests, along with specifying custom HTTP headers) that introduce many security issues as described in cross-site scripting. How CORS works The CORS standard describes new HTTP headers which provide browsers and servers a way to request remote URLs only when they have permission.  Web browser. A web browser (commonly referred to as a browser) is a software application for retrieving, presenting and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier (URI/URL) and may be a web page, image, video or other piece of content. Hyperlinks present in resources enable users easily to navigate their browsers to related resources. Although browsers are primarily intended to use the World Wide Web, they can also be used to access information provided by web servers in private networks or files in file systems.
History. Web browser engine. A web browser engine (sometimes called layout engine or rendering engine) is a software component that takes marked up content (such as HTML, XML, image files, etc.) and formatting information (such as CSS, XSL, etc.) and displays the formatted content on the screen. It draws on the content area of a window, which is displayed on a monitor or a printer. A layout engine is typically embedded in web browsers, e-mail clients, e-book readers, on-line help systems or other applications that require the displaying (and editing) of web content. Engines may wait for all data to be received before rendering a page, or may begin rendering before all data is received.
Comparison of web browser engines. Usage share as of 2013 by percent of layout engines/web browsers. User agent. User agent identification Web application. Single-page application. History The origins of the term single-page application are unclear, though the concept was discussed at least as early as 2003. Stuart Morris, a programming student at Cardiff University, Wales wrote the Self-Contained website at slashdotslash.com with the same goals and functions in April 2002, and later the same year Lucas Birdeau, Kevin Hakman, Michael Peachey and Clifford Yeh described a single-page application implementation in US patent 8,136,109.