ajaxsettings xhr

This article has been first published on the infoq Chinese site. All Rights Reserved. The original Article is "using dojo to implement Ajax requests: xhr, cross-domain, and others". If you need to reprint it, please attach this statement. Thank you.Infoq Chinese site is an online independent community for mid-and high-end technical personnel ,. net, Ruby, SOA, agility, architecture and other fields to provide timely and in-depth information, high-end

First: What is cross-domain?Cross Domain Request: Requests another resource from one resource, where the request address is different, the domain name is different, the port number is different, and the request protocol is different. It is caused by the browser's homologous policy, which is the security restrictions that the browser imposes on JavaScript.About the same-origin strategy recommended here to go to Ruan Big blog View Nanyi's personal blogHow do I differentiate between current request

1. ajax is used in the project. Results during the test, the page was found to be different in the two browsers: The 360 browser can successfully achieve the pop-up window (alert) effect, but the Firefox browser has no effect at all. But they all share a common feature: in the browser's debugging mode (F12) network option xhr... 1. ajax is used in the project. Results during the test, the page was found to be different in the two browsers: The 360 bro

The front end has been learning for some time, I usually use jquery encapsulated Ajax functions ($.ajax, $.get, $.post) in the project, but it is very simple and convenient to use, but in order to get a clearer understanding of Ajax, we need to learn native XHR objects. first, make clear what is Ajax,ajax: "Asynchronous JavaScript and XML," which translates to asynchronous JavaScript and XML. Ajax is a technique for creating fast, dynamic Web pages th

First, native JS implementation AJAXJS implementation AJAX is based primarily on browser-provided XMLHttpRequest (XHR) classes, all modern browsers (ie7+, Firefox, Chrome, Safari, and Opera) are built XMLHttpRequest objects.1. Get the XMLHttpRequest Object// get XMLHttpRequest Object var New XMLHttpRequest ();2. Send an HTTP requestNext, we need to open a URL and then send the request. The XMLHttpRequest Open () method and the Send () method are used

Cause: Read Nanyi's article about uploading files, testing, and encountering problems when using the Send method of the Xhr object.The problem is that using the Send method to send past data, can not be received in the background of node, after many tests, suspected is not a send and node incompatibility caused.So using the JQ Ajax method for testing,$ ("#sub"). Click (function() { $.ajax ({ URL:"/upload", Data:"foo=123",

Ajax Full Name: Asynchronous JavaScript and XML, asynchronous JavaScript and XML.Ajax is not a language, it is a technology that can update parts of a Web page without reloading the entire page. (interacting with the background for partial updates, asynchronous updates) Synchronous and asynchronous :synchronization (before the advent of Ajax): The client initiates the request, the server processes and responds to the request, during which time the client waits for a response from the servers, an

The use of xhr objects is the core of Ajax. For ease of learning, there is no server-side development in the code writing process. The combination of Web Front-end development and server-side development lies in "response data" (such as XML ). I have written the XML part directly on the server, but the focus is not on how the server program can call up the corresponding data content from the database. A simple example: click "View" and the user name (

Loading documents:/*@desc 加载XHR文件@author lee [Load string:/*@desc 加载XML文档@author lee [ Encapsulation of JavaScript XHR objects (cross-browser)