UPDATE: Google have just published a blog article called Google Instant, behind the scenes. It’s an interesting read, and obviously related to this question. You can read how they tackled the extra load (5-7X according to the article) on the server-side, for example. The answer below examines what happens on the client-side: Examining with Firebug, … Read more
this is because of the Same origin policy. you cannot use ajax to call external sites. if you really want to use, you have to use JSONP. Or you can use serverside proxy for this. means, call external site in the server side and do ajax call to the that webservice. UPDATE: create webserveice in … Read more
By default all browsers restrict cross-domain requests, you can get around this by using YQL as a proxy. See a guide here: http://ajaxian.com/archives/using-yql-as-a-proxy-for-cross-domain-ajax
Internet Explorer raises this error as part of its security zones feature. Using default security settings, an “Access is Denied” error is raised when attempting to access a resource in the “Local intranet” zone from an origin in the “Internet” zone. If you were writing your Ajax code manually, Internet Explorer would raise an error … Read more
With php5.4 now you can do : use JsonSerializable; /** * @Entity(repositoryClass=”App\Entity\User”) * @Table(name=”user”) */ class MyUserEntity implements JsonSerializable { /** @Column(length=50) */ private $name; /** @Column(length=50) */ private $login; public function jsonSerialize() { return array( ‘name’ => $this->name, ‘login’=> $this->login, ); } } And then call json_encode(MyUserEntity);
jQuery doesn’t support that, but you can do that with plain XHR: var xhr = new XMLHttpRequest() xhr.open(“GET”, “/test/chunked”, true) xhr.onprogress = function () { console.log(“PROGRESS:”, xhr.responseText) } xhr.send() This works in all modern browsers, including IE 10. W3C specification here. The downside here is that xhr.responseText contains an accumulated response. You can use substring … Read more
From Stephen Walthe, from his Contact manger project public static class ImageActionLinkHelper { public static string ImageActionLink(this AjaxHelper helper, string imageUrl, string altText, string actionName, object routeValues, AjaxOptions ajaxOptions) { var builder = new TagBuilder(“img”); builder.MergeAttribute(“src”, imageUrl); builder.MergeAttribute(“alt”, altText); var link = helper.ActionLink(“[replaceme]”, actionName, routeValues, ajaxOptions); return link.Replace(“[replaceme]”, builder.ToString(TagRenderMode.SelfClosing)); } } You can now type … Read more
Interesting question. There are two parts to make this work: a JavaScript handler and UIWebView delegate methods. In JavaScript, we can modify prototype methods to trigger events when an AJAX request is created. With our UIWebView delegate, we can capture these events. JavaScript Handler We need to be notified when an AJAX request is made. … Read more
If you are using jQuery to do your ajax request, it will not send the header X-Requested-With (HTTP_X_REQUESTED_WITH) = XMLHttpRequest, because it is cross domain. But there are 2 ways to fix this and send the header: Option 1) Manually set the header in the ajax call: $.ajax({ url: “http://your-url…”, headers: {‘X-Requested-With’: ‘XMLHttpRequest’} }); Option … Read more
Without handling cache headers manually, it is not possible. Normally, 304 responses are not made available through the XHR API: For 304 Not Modified responses that are a result of a user agent generated conditional request the user agent must act as if the server gave a 200 OK response with the appropriate content. jQuery … Read more