AJAX :: XmlHTTPrequest - No Response From Server?
May 5, 2010
I am running the scripts below which should return a string containing a URL. So far, it cannot find the form contents in Firefox, but displays the non-dynamic data such as ?Location=. It won't work at all in IE.
HTML Code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[Code]....
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Mar 20, 2009
I am trying to read data from server using AJAX XMLHttpRequest.responseText.In received data, there are lot of similar type of characters which has tge value of FFFFFD (65533). I think, all characters which has the value above 127 are converted to default character.
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Jul 20, 2009
I am using jquery.ajax() to make a POST call to web server which returns HTTP 201 response for successful creation of object at server. Since 201 is a success I expect the success function specified with jquery.ajax to execute but instead it executes the error function specified with jquery.ajax. Here is how I am using jquery.ajax call.
[Code]...
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Feb 23, 2010
A couple of months ago I posted a question in these forums pertaining to some trouble I've been having with a webpage utilizing Javascript and PHP to implement AJAX.
Quote: I'm having two Ajax-related problems on a page I am working on at the moment. (Can't include the link since I'm a new Dev Shed member)
On this page, I have two buttons that use Ajax to fetch two separate forms and put them into a chosen div; that part works like a charm.
On said forms, there is a div that is meant to display any necessary error messages when the submit button is clicked. However, on the first time the page is visited and the form is chosen, the div won't display the error message. Only after refreshing the page/choosing the form a second time will the message show. I've been checking the response from the server via Firebug and the response is correct, it just seems like the page isn't updating correctly.
Secondly, once I refresh or choose the form again and the error message begins to show, if I enter values into the form fields and should be getting a different error message, it never updates. Once again, the server response is correct, but for some reason the page just isn't updating to reflect the new message.
I have been using the date field on the New Event form for testing; if you have Firebug, you should be able to see that I am getting the desired response from the server (look in the allErr div), but the HTML isn't changing with it. I have tried both using my own Ajax functions and using jQuery's Ajax implementation, but both give me the same problems. What am I doing wrong?
Code:
PHP Code:
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Oct 2, 2010
I have the following JavaScript (see below). The script requests an XML file from the server and displays it on the page.
The script works fine when the requested XML file is stored on the same server as the script.
The problem is when I try requesting an XML file from an external server such as the National Weather Service. I get an error. If I take the XML file from the National Weather Service and save it to my server it works. Why can't I use my script to request XML files stored on external servers?
Javascript Code
window.onload = initAll;
var xhr = false;
function initAll() {
document.getElementById("makeTextRequest").onclick = getNewFile;
[Code]....
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Mar 27, 2011
I have been googling around about this for quite awhile without any definite answer. Here is the code I am having a problem with:
var $m = {'id1':'page1.html','id2':'page2.html'};
/* load modules */
$j.each($m, function($key, $value){
$j('#'+$key).html($loading);
$j.ajax({
url:'proxy.php',
type:'post',
data:'module='+$value,
context:$j('#'+$key),
dataType:'html',
success: function($response){
$j('#'+$key).html($response);
}});});
The problem is that the second XMLHttpRequest response does not get displayed. If using firebug for debugging you can see that two separate responses are returned from the server both with the correct HTML data. The first item gets displayed on the page however the second item never gets displayed. Some of the things I have read when searching for similar problems indicate a problem with the div id changing prior to the success callback.
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May 17, 2010
I have an ajax post which returns a large html response. It is getting truncated at 98784 characters everytime. Is there a limit to a response size or a way around this?
Using: IE7
jQuery 1.4.2
jQuery UI 1.8.1
Here is my ajax call:
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Jun 24, 2010
I have a drop down menu with a change event that makes a JQuery JSON AJAX request, which I've simplified for this post:
Code JavaScript:
$('#id_template').change( function() {
var data = {
action: 'change_template'
[Code]....
When I do change the drop menu's value, the request seems to be successfully sent with a successful reply received (inspected it in Firebug), as the content in the "status == success" is accessed. However, the problem is the response is null.
I don't have this problem when I'm testing on my local WAMP setup, and so have no idea why everything appears to be working fine here except the retrieval of the response array.
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Dec 28, 2011
I have designed a form as below
<form action="https://checkout.google.com/api/checkout/v2/checkoutForm/Merchant/XXXXXXXXXXXX" id="BB_BuyButtonForm" method="post" name="BB_BuyButtonForm" target="_top" >
<input name="item_name_1" type="hidden" value="Test Product"/>
<input name="item_description_1" type="hidden" value="Test Product of my cart"/>
[Code].....
On hitting the button one new window is getting opened with response URL from 3rd party(in this case Google Checkout). But for me i need to open this in a inline-popup (lightBox, ColorBox etc...) rather than new window. In the form definition, i have replaced mymerchant_idwith 'XXXXXXXXXX' for privacy purpose
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Aug 10, 2009
How does wrapping a json response from the server in textarea tags?
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Mar 12, 2010
I'm having two Ajax-related problems on a page I am working on at the moment. [url] On this page, I have two buttons that use Ajax to fetch two separate forms and put them into a chosen div; that part works like a charm.
On said forms, there is a div that is meant to display any necessary error messages when the submit button is clicked. However, on the first time the page is visited and the form is chosen, the div won't display the error message. Only after refreshing the page/choosing the form a second time will the message show. I've been checking the response from the server via Firebug and the response is correct, it just seems like the page isn't updating correctly.
Secondly, once I refresh or choose the form again and the error message begins to show, if I enter values into the form fields and should be getting a different error message, it never updates. Once again, the server response is correct, but for some reason the page just isn't updating to reflect the new message.
I have been using the date field on the New Event form for testing; if you have Firebug, you should be able to see that I am getting the desired response from the server (look in the allErr div), but the HTML isn't changing with it. I have tried both using my own Ajax functions and using jQuery's Ajax implementation, but both give me the same problems.
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Mar 11, 2010
I'm trying to write a script that will be loaded from one server into a website on another server. This script is trying to talk (ajax) to the server that it comes from but I'm getting "Access Denied" errors. I'm well aware that cross-domain calls are not allowed for security reasons so my question is how does Google Analytics work because essentially thats what I'm trying to accomplish. I can embed a Google Analytics script into my website and it'll gather data and send it back to Google.
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Apr 19, 2010
I'd been looking for some way to get server date/time without using any server side script (such as ASP, PHP, etc).
I found this and it worked just excellent for me! I just want to share it because it wasn't easy to find.
I created a js document with code:
Code:
Now, I can use this js within a html like this:
HTML Code:
You may change your machine date/time and check both dates.
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Oct 3, 2011
I'm trying to get a return of
[
["red","green","blue"]
,["blue","red","green"]
[code]....
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Sep 27, 2010
It is day two of the same problem (and day two of learning Ajax, day five of Javascript)
The current code (below) does nothing; it does not go into the showContents function. Switching the order of some items would cause it to enter the function, but it would always alert that the xhr status was 0. I guess this is an improvement?
php doc that is getting requested (I don't think the error is here as the problem is that it is not even initializing):
Code:
javascript code that is requesting the information:
Code:
I need to pass the num variable because the fields I am dealing with are part of a bunch of fors that create an unspecified number of fields titled 1source, 2source, 3source, etc.
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Mar 23, 2006
I'd like to create a slideshow using the same technology that Google Maps uses:
Load/unload images offscreen and the user can drag the images around.....
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Jan 15, 2011
My app recently upgraded to 1.4 and as such started using the XMLHttpRequest in the success callback of the .ajax function however we been forced to roll back to 1.3.2 due to performance issues with IE7 (forced to use in a corporate environment) Is there any way to get access to the XMLHttpRequest after an ajax call? If not, would anyone be so kind as to point out if its possible to modify the 1.3.2 source to add the parameter to the success call back like in 1.4? I am hoping its a simple modification however I could be wrong. We are set to upgrade to the lastest jQuery when we get a browser upgrade to IE9 but that could be up to a year away and I would really like to continue to use the XMLHttpRequest in my app as its a lot faster than my old approach.
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May 4, 2011
XMLHttpRequest() function not work with IE 8. But its woking properly with other browsers.
[Code]...
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May 7, 2011
I am trying to create an xmlhttprequest object to update the shopping cart on my web page without submitting the entire page to the server for processing. However, what I have done so far is not working. All that is happening when I click the "update cart" button is the page sort of flashes and the check marks in the remove item check boxes disappear. The first code snippet is the "traditional" way of submitting the whole page to the server for processing - and it works. The second snippet is what I have done to try and implement AJAX to submit only the shopping cart - and it does not work.
<html>
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Feb 8, 2009
I am trying to build a very simple Ajax example with JavaScript and PHP. Basically, the goal is to populate a select list with values dependent on the selection in another list. I am able to do a GET from a server-side script and I see the XML displayed correctly in XMLHttpRequest.responseText. However, when I try to check XMLHttpRequest.responseXML, I am not able to get anything out of it. The alert() shows it as an "Object", so it's not null. I have tried getElementByTagName() from both responseXML and responseXML.documentElement, each time giving a legitimate inner tag, but nothing comes out. What is the correct way of doing it? This is my JavaScript and HTML code:
[Code]...
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Mar 16, 2011
I find ajax with jquery more confusing than with regular JS, b/c in jQuery you don't declare XMLHttpRequest object.. so how do you do something like:
In example I mention here,[url] namely [url] I don't understand where var 'msg' is declared, I know it comes from the back-end, but HOW is it passed to the front-end? (how do you do this w/o responseText or something similar?)
I'm trying to connect to a send-mail jsp with ajax.. the email is not getting sent.. I want to test if the ajax connection is being made at all.. don't know how do it w/o something like xmlHttp.responseText
This is my jQuery ajax code for connecting to send-email jsp:
var dataToSend = "name=sName&email=sEmail&msg=sMsg;
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May 14, 2009
i am new to AJAX but i havejust managed to write one of my first basic scripts. What it does is takes all the news items out of a database and lists them as links. When you click a link i want all of the data that is linked to that news item to display underneath. Now i have got this to work except it will not work in Firefox, all other browsers it is fine.
[Code]....
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Mar 13, 2009
I was wondering if it was possible to execute javascript returned by ajax (XMLHttpRequest)? I can see that the script is returned by it doesn't execute. Here is what it returns. I can see the output but when I click on it nothing happens.
Code:
<script type="text/javascript">
function hi(name){
var latBox = document.getElementById("myinfo");
latBox.innerHTML = "<div>Greetings: " + name + "</div>";
}
</script>
<p onClick="hi('hi');">Math.random = " + Math.random() + "</p>
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May 14, 2006
Can I use the XMLHttpRequest object to call a url which would generate a PDF and then display it to the screen?
I'm new to AJAX and I'm very interested in using it to asychronously bring back documents with a content-type that IS NOT text/plain or text/html (like a PDF or Excel document) and then display that document to the screen. I have a web application that dynamically generates PDF and Excel documents. A user may have to wait a minute for the new doc to be created and displayed to the user. I want to put an animated notice saying the doc is being generated similar to what you see when you execute a search on a search engine. I've tried using animated gifs (with frames, etc.) but they don't work. As soon as a request is sent for the PDF, the browser halts the gif in IE. If I could instead call the URL that will produce the PDF asynchronously, then I could display the animated gif and call the PDF at the same time. Once the PDF is generated, I want it to then be displayed to the screen.
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Aug 20, 2010
Here's my problem code:
document.onclick=handler;
function handler(e) {
//do stuff
var params = "something";
var request = new XMLHttpRequest();
request.open("GET", "http://www.foo.com/bar.php?" + params, true);
[Code]....
Now is user clicks something else but not a link everything works just fine. But if she clicks a link, the bar.php call does not work (never comes to the server). If I change the call to a synchronuous one request.open("GET", [URL] false) also clicking a link works fine. But I would of course prefer the async way.
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Mar 7, 2011
I've put together a function for screen scraping, just to see if I could do it. Basically, this gets a stock quote from Yahoo! and displays it. It works with no issues in IE7. FF and Chrome, however, it does not work. It will not display anything. Error Console is not returning any errors, and I'm a total novice when it comes to troubleshooting with FireBug.
[Code]....
I'm sure it's something simple, something I've overlooked. I'm beginning to think it might be with the trenary conditional setting the method.
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