xmlhttprequest

问题 example: Go to your Facebook wall, scroll the end of the page, Facebook will load more wall posts asynchronously . Or just click on an images in your wall post. The image dialog (with comments and larger image) is loading asynchronously as well. (You can see the GET requests with firebug). But by looking and the firefox tab, you see the loading indicator, just like when a postback occurs. I know this can be achieved by using an IFrame and changing its src. Just like what iGoogle does. But I'm

问题 example: Go to your Facebook wall, scroll the end of the page, Facebook will load more wall posts asynchronously . Or just click on an images in your wall post. The image dialog (with comments and larger image) is loading asynchronously as well. (You can see the GET requests with firebug). But by looking and the firefox tab, you see the loading indicator, just like when a postback occurs. I know this can be achieved by using an IFrame and changing its src. Just like what iGoogle does. But I'm

问题 I am posting a request and I am suppose to receive a 'success' string back as response. I am getting an HttpResponseError with the following information posted in the image below. PurchaseOrderService postPurchaseOrderCustom(purchaseOrderCustom: PurchaseOrderSaveCustom) { const url = `${this.localUrl}purchaseOrderCustom`; return this.http.post<String>(url, purchaseOrderCustom, {headers: this.header}) .pipe( catchError(this.handleError('postPurchaseOrderCustom', 'I am an error')) ); }

问题 I am posting a request and I am suppose to receive a 'success' string back as response. I am getting an HttpResponseError with the following information posted in the image below. PurchaseOrderService postPurchaseOrderCustom(purchaseOrderCustom: PurchaseOrderSaveCustom) { const url = `${this.localUrl}purchaseOrderCustom`; return this.http.post<String>(url, purchaseOrderCustom, {headers: this.header}) .pipe( catchError(this.handleError('postPurchaseOrderCustom', 'I am an error')) ); }

问题 I'm getting started with the Web Audio API and just wondering if it's possible to use jQuery's $.ajax or $.load functions to make the XMLHttpRequest that receives the audio data. Do $.ajax or $.load support responseType=arrayBuffer? EDIT: Ok, so here's what I have so far: function loadAudio() { $.ajax({ url: sourceUrl }).done(function(response){ return response; }) } but I need to return an ArrayBuffer. So how do I convert the response into an ArrayBuffer? 回答1: About your question, it seems

问题 I need to call OpenMRS REST API from Java script to get data from OpenMRS. Below is my java script code: function myfunction(){ var xhr = new XMLHttpRequest(); xhr.open("GET", "http://localhost:8081/openmrs-standalone/ws/rest/v1/person?q=John", false); xhr.setRequestHeader("Authorization: Basic YWRtaW46QWRtaW4xMjM"); xhr.send(""); alert(xhr.status); } Where YWRtaW46QWRtaW4xMjM is my base64 coded username:password as explained here. If I do not put the authorization line in the code and check

问题 I routinely have to search the state of NV for unclaimed property and put the results in an Excel spreadsheet. I am trying to automate the process but I'm limited to using Excel 2010 and VBA. Below is the URL to the site I'm trying to submit a form using xmlhttp. URL: https://nevadatreasurer.gov/UPSearch/ I created a class to automate submitting forms on other websites but no matter what I enter in the postdata the form is never submitted. Below is my submission, and method to submit the form

问题 Short version: Looking for a method to wait for an Asynch XHR request or a way to get Synch XHR working in Safari. Much longer version: I'm working on a web service that uses various external data sources mashed together. I am using a Javacript front-end which makes AJAX/XHR calls to my PHP server code. There's no cross-site issues as the client only requests data from my server (the server makes the external data requests). I'm using a synchronous XHR request as I have some post-load

问题 Why is the Etag header not being returned by jqXHR.getAllResponseHeaders() in the following minimal example? Run with: node etag-server.js (then visit http://localhost:8080/ ) etag-server.js var fs = require('fs'), http = require('http'); var webServer = http.createServer(function (request, response) { response.writeHead(200, {"Content-Type": "text/html"}); response.end(fs.readFileSync('frontend.html')); }); var apiServer = http.createServer(function (request, response) { response.writeHead

问题 If the data is Url Encoded, is it secure enough to send login credentials over HTTP GET? 回答1: Not at all. URL encoded is easily reversible. You should encrypt the transport layer (i.e. use HTTPS) 回答2: No - URL encoding is meant to make sure all the characters you try to send with a GET request can actually arrive at the other end. It is actually designed to be easily encoded and decoded to prepare data for transport, not for security. 回答3: URL encoding is not any kind of encryption, it just