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By convention, the PAC file is normally named proxy.pac. The WPAD standard uses wpad.dat. The .pac file is expected to contain at least one function: FindProxyForURL(url, host), with two arguments and return value in specific format: * url is the URL of the object * host is the host-name derived from that URL.
In the JSONP usage pattern, the URL request pointed to by the src attribute in the <script> element returns JSON data, with JavaScript code (usually a function call) wrapped around it. This "wrapped payload" is then interpreted by the browser. In this way, a function that is already defined in the JavaScript environment can manipulate the JSON ...
XMLHttpRequest (XHR) is an API in the form of a JavaScript object whose methods transmit HTTP requests from a web browser to a web server. [1] The methods allow a browser-based application to send requests to the server after page loading is complete, and receive information back. [ 2 ]
ELS was created for JavaScript developers to create server-rendered HTML pages in an easy and familiar way, likely other templating engines available in other programming ecosystems. [ 5 ] [ 1 ] EJS include features such as subtemplates that can be included in other templates and caching to improve performance to make it run faster.
It can also be used to get around cross-site scripting (XSS) restrictions, embedding the attack payload fully inside the address bar, and hosted via URL shortening services rather than needing a full website that is controlled by a third party. [8] As a result, some browsers now block webpages from navigating to data URIs. [9]
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.
Learn how to enable JavaScript in your browser to access additional AOL features and content.
An opportunity to raise a "File Download" dialogue box for a known MIME type with binary format or suggest a filename for dynamic content. Quotes are necessary with special characters. Content-Disposition: attachment; filename="fname.ext" Permanent RFC 2616, 4021, 6266: Content-Encoding: The type of encoding used on the data. See HTTP compression.