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An issue inherent to indiscriminate link prefetching involves the misuse of "safe" HTTP methods.The HTTP GET and HEAD requests are said to be "safe", i.e., a user agent that issues one of these requests should expect that the request results in no change on the recipient server. [13]
Learn how to enable JavaScript in your browser to access additional AOL features and content.
It appeared as XMLHTTP in the second version of the MSXML library, [4] [5] which shipped with Internet Explorer 5.0 in March 1999. [6] The functionality of the Windows XMLHTTP ActiveX control in IE 5 was later implemented by Mozilla Firefox, Safari, Opera, Google Chrome, and other browsers as the XMLHttpRequest JavaScript object. [7]
Internet Explorer was the first major browser to support extensions, with the release of version 4 in 1997. [7] Firefox has supported extensions since its launch in 2004. Opera and Chrome began supporting extensions in 2009, [8] and Safari did so the following year. Microsoft Edge added extension support in 2016. [9]
CEF 3 is a multi-process implementation based on the Chromium Content API and has performance similar to Google Chrome. [6] It uses asynchronous messaging to communicate between the main application process and one or more render processes (Blink + V8 JavaScript engine).
Ext JS version 2.0 was released on 4 December 2007. This version was promoted as providing an interface and features more similar to those traditionally associated with desktop applications. Also promoted were the new user documentation, API documentation, and samples. [12] Ext JS 2.0 did not provide a backward compatibility with version 1.1.
The first alpha version of Bootstrap 4 was released on August 19, 2015. [16] The first beta version was released on August 10, 2017. [17] Otto suspended work on Bootstrap 3 on September 6, 2016, to free up time to work on Bootstrap 4. Bootstrap 4 was finalized on January 18, 2018. [18] Significant changes include: Major rewrite of the code
Software developers can request a specific version of a software package, or load the latest available version. jsDelivr can also minify any file in JavaScript, CSS, or SVG format, which can reduce loading times. jsDelivr permanently caches requested files, so they remain accessible even if the original software repository is moved or deleted.