origin servers down

We all know that js cannot be used across domains, But we sometimes need to use it like this. What should we do? There is always a method for. js to be cross-origin, you can use:

Request cross-origin processing, request cross-OriginAdd the following node configuration information to the web. config configuration file:

Ajax cross-origin access to webservice and ajax cross-origin webservice Front-end code $.ajax({ type: "POST", url: "http://localhost:9767/WebService1.asmx/HelloWorld?jsoncallback=?", data: "{}", dataType: "jsonp", success: function (data) { alert(data.result); } }); Webservice code public void Hello

Jsonp cross-origin request, jsonp cross-origin request$. Ajax ({Async: true, // default value: true, which is an asynchronous request. If you want to send a synchronization request, set this option to false. Note: The synchronous request locks the browser. Other operations can be performed only after the request is completed.Url :'...........', Type: "GET ", DataType: 'jsonp', // jsonp format. When calling

What is the difference between a Web server, an application server, and an HTTP server? What kind of server does IIS, Apache, Tomcat, Weblogic, and WebSphere belong to? This concept is important.The basic function of Web server is to provide Web information browsing service. It only supports HTTP protocols, HTML document formats, and URLs. Mates with the client's browser. Because the Web server primarily supports protocols that are HTTP, HTTP servers

A few days ago, when I was working on a cooperative project between kaixinnet and kaixinnet, I encountered the problem of iframe cross-domain self-adaptation. At the beginning, I was confused that kaixin.com's technical engineers sent me a piece of code like this. The Code is as follows: ScriptFunction setHeight (){Var dHeight = document.doc umentElement. scrollHeight;Var t = document. createElement ("p ");T. innerHTML = '';Document.doc umentElement. appendChild (t. firstChild );}Script I w

This article introduces the cross-Origin data transmission implemented by window. name. It is very useful for you to practice it yourself. I would like to share with you the script home website for your reference. It is really useful. The specific implementation method is recorded as follows: There are three pages: A.com/app.html:application page.A.com/proxy.html:the proxy file is generally an HTML file without any content, and its contents and appli

Tags: security protocol personal Resource Add content cross-domain problem close one1. homologous, homologous strategy (same origin policy) Homologous refers to the protocol, port, domain names are all the same. The same Origin policy is a convention that is the most central and basic security feature of the browser, and if the same origin policy is absent, the n

effect after 5 minutes (the specific effective time can be configured. Because the epoll network model is used, spproxy can defend against slow connection attacks. It also has the same powerful anti-attack function as space ui. To reduce requests to external domain servers to improve the response speed of cross-origin requests and reduce the risk of blocking our proxy services by external domain

adding a JS external domain that can be accessed across domains. This will take effect after 5 minutes (the specific effective time can be configured. Because the epoll network model is used, spproxy can defend against slow connection attacks. It also has the same powerful anti-attack function as space UI. To reduce requests to external domain servers to improve the response speed of cross-origin requests

Use jQuery and JSONP to easily solve cross-origin access problems [] And jqueryjsonp cross-Origin Address: http://www.jb51.net/article/46463.htm Fortunately, with the help of jquery, cross-domain problems seem less difficult. this time, I also took this opportunity to give a thorough understanding of cross-origin issues. Based on the actual development project, I

Web2.0 and SNS, web applications require more and more cross-origin access requests. However, cross-origin requests in scripts are subject to security restrictions, web developers urgently need to provide a safer and more convenient cross-origin Request Method to integrate (mashup) their own web applications. One advantage of this is that requests can be distrib

Common javascript cross-origin communication methods This article mainly introduces several common cross-origin communication methods of javascript. First, let's explain JSONP.1. JSONPJSONP (JSON with Padding) is a "usage mode" of JSON, which can be used to solve cross-Origin data access problems in mainstream browsers. Because of the same-

One, the role of domain from DNS serverAs we mentioned in our previous essay, there are generally three types of DNS servers, one is primary DNS server (primary DNS server), one is secondary DNS server (from DNS servers), and the other is caching DNS Server, we configure a domain DNS service is to configure it to a primary DNS server, then from the DNS server is mainly used to do?Configure a domain from the

Ajax jsonp cross-origin request implementation method, What is cross-origin? Simply put, for security reasons, JavaScript on the page cannot access data on other servers, that is, "same-origin policy ". Cross-origin means to bypass the same-

Nginx is a reverse proxy server, forward proxy server and reverse proxy server differences do not repeat, there are a lot of good pictures a look will know. Front-End and back-end servers will be encountered on different IP in front of development, this is if the direct AJAX remote backend server, will be the error Failed to Loadhttp://10.100.122.138:8081/qrapp-service/bus/getstationbyline?busline=1 : No ' Access-control-allow-

local server. to indirectly complete cross-origin access. however, it is clear that the development volume is large, but the restrictions are also the least. Many widgets Open Platform servers (such as sohu blog Open Platform) are actually implemented. not in the scope of this discussion. We will discuss the real cross-origin access on the browser side. We reco

servers (such as sohu blog Open Platform) are actually implemented. not in the scope of this discussion. We will discuss the real cross-origin access on the browser side. We recommend that jQuery $. ajax () currently supports cross-origin access through get, which is actually completed using jsonp. Real case: The Code is as follows: Var qsData = {'searchword':

-origin security restrictions. Therefore, the local server completes "cross-origin access" in a way similar to httpclient, then, use Ajax on the browser side to obtain the URL corresponding to "cross-origin access" on the local server side. to indirectly complete cross-origin access. however, it is clear that the devel

Javascript cross-origin knowledge details JS cross-origin knowledge summary: Before the term "cross-origin" often appeared, we used it frequently. For example, if the img and src of website A point to an image address of website B, there is no doubt that this is normally displayed (regardless of anti-leech technology). Similarly, you can direct the src attribut