xmlhttprequest | 易学教程

AngularJS: How to execute a controller function AFTER completion of AJAX call in a service?

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问题 Here's my code in the service. this.loginUser = function(checkUser) { Parse.User.logIn(checkUser.username, checkUser.password, { success: function(user) { $rootScope.$apply(function (){ $rootScope.currentUser = user; }); } }); }; Here's my code in the controller: $scope.logIn = function(){ authenticationService.loginUser($scope.checkUser); console.log($scope.currentUser) }; So, what I want to do is, execute some code AFTER the completion of AJAX call, whose success function sets the value of

Browser aborting Ajax requests sporadically without returning any errors [duplicate]

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问题 This question already has answers here : How to solve Firebug’s “Aborted” messages upon Ajax requests? (2 answers) Closed 6 years ago . In my project (PHP with Symfony 2) I do a lot of Ajax requests in every page. I'm having a lot of problems with them, because it looks like browsers (tested in Google Chrome and Firefox) are aborting requests without giving me an error. I've done a clean page to test what can be causing this issue and the error persists. I've tried a test doing 10 requests

Prevent cache in every Dojo xhr request on page

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问题 I'm able to intercept Dojo 1.6.1 xhr requests using IO Pipeline Topics as described here: Dojo - intercepting XHR calls I would like to add a time parameter to the URL (f.e. &time=12345 ) to prevent cache in certain (or all) xhr GET requests originating from dojox.data.JsonRestStore (details of what I'm trying to achieve are here). My code looks like this: dojo.subscribe("/dojo/io/send", function(deferred) { if (deferred.ioArgs.url.indexOf("restService1") > -1) { deferred.cancel(); deferred

Prevent cache in every Dojo xhr request on page

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Building Chrome extension using xpath and Cross-Origin XMLHttpRequest

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问题 I'm currently trying to build my first Chrome extension but I'm having a slight issue with my code. I want to use XMLHTTPRequest and xpath to display a specific number from an external website as a badge on my icon. The code I'm using in my background.js file is as follows: var xhr = new XMLHttpRequest(); xhr.open("GET", "http://www.example.com", true); xhr.onreadystatechange = function() { if (xhr.readyState == 4) { // innerText does not let the attacker inject HTML elements. document

How to submit a HTML form with header

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问题 I want to submit a form including a header during posting the request , is that possible ? I tried below code but I was unable to send the request with the defined header . <html> <body> <script> var xhr = new XMLHttpRequest; xhr.setRequestHeader("Myheader" , "value") </script> <form action="https://example.com/myprofile/myedit" method="POST"> <input type="hidden" name="firstname" value="Jacob " /> <input type="hidden" name="email" value="jacob@gmail.com" /> <input type="submit" value="Submit

Origin header null for XHR request made from <iframe> with sandbox attribute

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问题 I have a project where I am trying download some data in a tab separated value format from a datahandler however, Google Chrome is sending a null value for the Origin header value. I'm seeing this when I navigate to http://server.corp.somebiz.com/reportpages/Report_Page_Requests_Over_Time.aspx?app=76ac42b7-ba6f-4be4-b297-758ebc9fe615 var url = 'http://server.corp.somebiz.com/DataHandlers/ReportSets.ashx?task=pagerequestsovertime&app=188d1956-c4a7-42f7-9bdd-38f54c14e125&format=tsv'; d3.tsv(url

How to send javascript object with POST XMLHttpRequest

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问题 I want to send the following data in POST XMLHttpRequest method. Data to be sent: var data = {xx:"value",user:{password:"pass",username:"xyz"}}; Code used: var xmlhttp = new XMLHttpRequest(); var data = {xx:"value",user:{password:"pass",username:"xyz"}}; data = JSON.stringify(data); xmlhttp.open("POST",Url,true); xmlhttp.onreadystatechange = function() { if(xmlhttp.readyState == 4 && xmlhttp.status == 200) { alert(xmlhttp.responseText); } } xmlhttp.send(data ); Result: Getting "xx" is missing

Can one use the Fetch API as a Request Interceptor?

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问题 I'm trying to run some simple JS functions after every request to the server with the Fetch API. I've searched for an answer to this question, but haven't found any, perhaps due to the fact that the Fetch API is relative recent. I've been doing this with XMLHttpRequest like so: (function () { var origOpen = XMLHttpRequest.prototype.open; XMLHttpRequest.prototype.open = function () { this.addEventListener('load', function () { someFunctionToDoSomething(); }); origOpen.apply(this, arguments); }

AJAX—复习总结

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AJAX = Asynchronous JavaScript and XML（异步的 JavaScript 和 XML）。 AJAX 不是新的编程语言，而是一种使用现有标准的新方法。 AJAX 是与服务器交换数据并更新部分网页的艺术，在不重新加载整个页面的情况下。什么是 AJAX ？ AJAX = 异步 JavaScript 和 XML。 AJAX 是一种用于创建快速动态网页的技术。通过在后台与服务器进行少量数据交换，AJAX 可以使网页实现异步更新。这意味着可以在不重新加载整个网页的情况下，对网页的某部分进行更新。传统的网页（不使用 AJAX）如果需要更新内容，必需重载整个网页面。有很多使用 AJAX 的应用程序案例：新浪微博、Google 地图、开心网等等。 AJAX是基于现有的Internet标准 AJAX是基于现有的Internet标准，并且联合使用它们： XMLHttpRequest 对象 (异步的与服务器交换数据) JavaScript/DOM (信息显示/交互) CSS (给数据定义样式) XML (作为转换数据的格式) AJAX应用程序与浏览器和平台无关的！ AJAX - 创建 XMLHttpRequest 对象 XMLHttpRequest 是 AJAX 的基础。 XMLHttpRequest 对象所有现代浏览器均支持 XMLHttpRequest 对象