JQuery :: Ajax Call Doesn't Get Jsonp It Expects?
Sep 30, 2011
I have jQuery 1.5.1 client-side that is making an .ajax() call to an ASP.Net MVC controller method - expecting a jsonp packaged response. In normal cases, the server packages up a response of typeapplication/json and that works fine. The problem is when the session on the server times out, the server will respond to the ajax call with the server's login page, which obviously isn't valid json and the error handler on the ajax call fires with a parseerror. Similarly, if there's an exception server-side, the site redirects to a custom error page, which again isn't valid json, and: barf. I have no information client-side what went wrong when in the .ajax error handler. The xhr just says parseerror with no further info. Is there any way I can see what the server responded with so I can handle this more intelligently? I've tried change the client-side dataType to "json text" hoping that it would try to interpret the server response as text, if the json fails, but it just goes to the error handler.
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Jul 28, 2011
I'm trying to use $.ajax to make a JSONP call, but the callback function is never executed.I have debugging code in my server that acknowledges that a request is received, but that never runs.The same URL works fine if I paste it into the address bar of my browser.
[Code]...
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Aug 24, 2009
I have problem with $.ajax call with Firefox. At all other browsers works fine(Opera, IE6,Chrome) My code:
$.ajax({
url : "statistic_json.php",
type : "post",
dataType : "json",
[Code]....
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Jun 1, 2009
I am trying to use JQuery Ajax to call WCF, but it seems it doesn't recoginze the path. Here is my code:
[Code]...
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Jan 10, 2011
I have this PHP code which calls several dropdown menus. These menus are nearly identical except each menu queries a sql database with the paramters set by all the previous (Make, Model, Year, Size) down the line. This code works in Chrome and FF, but in IE the default drop down (Make) is there, and the first dropdown (Model) gets called- but the subsequent dropdowns (Year and Size) do not.
I read somewhere that Microsoft acknowledged some error in how Ajax responds to select menus but has no intention of rectifying it or providing a workaround?
The Page code for calling the Functions:
function ajaxFunction1(fld, val){
//document.getElementById('details').innerHTML="";
var ajaxRequest;
try{
[Code]....
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Oct 1, 2009
I'm using an .ajax() call to do a jsonp request to another domain. When the user is not logged in, however, the server will return a 401 error. Unfortunately, this causes my .ajax() call to fail _without_ calling the error callback. Is this a known bug? Here is my code:
[Code]...
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Jun 27, 2011
I am using .ajax() to access cross-domain data using JSONP. Because I need to be able to cache the data I want to use a static name for thejsonpCallback function, so I have set the jsonpCallback option in the .ajax() request. However that appears to requires a global function whereas the auto generated function didn't (well maybe it did but that was all hidden from me).
I definitely need to be able to cache the results. Ideally I wouldn't have a global function handling the data. Is there another way to do this? If not what is the best practice way to go about using a global function these days and how do I provide it with the context of the object/module it was called from - which is where the data is needed?
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Oct 2, 2009
The following code works well in both FF and IE
<div id="div1">
<script type="text/javascript">
// somecode
</script>
</div>
<script type="text/javascript">
[Code]...
However if the contents of div1 obtains its innerHTML from an AJAX call then the first <script> tage is not found by getElementsByTagName("script") if there is no other HTML before the <script> tag.
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Aug 25, 2009
We're attempting to load a snippet of XHTML into a container on a page via .load() from a fancyBox pop-up.
Here's the bit of jQuery we're using:
[Code]...
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Dec 14, 2010
The general framework is a simple user login function. The user name is selected and a password entered as usual. The function grabs the element values and passes them to a php page that queries the database. An AJAX call returns the password to the function and then I want the innerHTML to be a choice of two web pages, depending on success or failure of validation. There are existing AJAX functions available on the internet but they are overly complicated for what I think should be a simple, quick to load function.
Where I am stuck is that the standard procedure to make an AJAX call is the browser window event. How do you make the call from within the function? I have tried creating two new variables, "success" and "again" to replace xmlhttp, but still stumble on the event to assign a value. I left the blank password protection (if statement) with that variable to demonstrate what I mean.
I've put in my code below, which is in development and successfully alters the innerHTML text depending on user input but I can't figure out how to insert the relevant php page. I have '// out' the testing bits, but left them for info. (I have tried full 'scripting' as the innerHTML, but it's messy.)
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May 12, 2009
Currently I was able to load remote JSON (php) file using JSONP protocol. However, how to do if my remote file is static? In the doc, it said: you can load JSON data located on another domain if you specify a JSONP callback, which can be done like so: "myurl?callback=?". But since my remote file is a static text file, how can I specify the callback in the output dynamically? In fact, I also wonder if it is possible to control the random callback name by modifying jquery source code...
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Jun 25, 2011
I found this post: [URL] It explains exactly what I want to do. The person who had the problem seemed to have sorted it out but as my knowledge is not to great I am not to sure what he is getting at. I tried various things but to no avail. All I want to do is return data to a calling javascript using type get and datatype jsonp. If I simply Response.Write "[(""id"": ""123""}]" then nothing happens. So whatever the thread I revered to above is doing it seems to be going in the right direction.
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Aug 6, 2010
Im trying to figure out if a public picasaweb userid exists or not. Its a pure client app, so no server-side proxies. The 1st method works only on FF & Chrome.
[Code]...
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Mar 30, 2011
Here's my code:
$( document ).ready( function(){
$('#get_metars').click( function(){
//var icao = $('#icaos').val();
[code]....
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Mar 17, 2010
If this is synchronous, normal json request, I can capture the result (data) and return it to a calling function.
However jsonp is not synchronous. Whilst the data IS returned, and I can view it from within the success function, but I cannot access it after that.
$.ajax({
url: remote_url,
async: false,
cache: false,
[Code]....
I am building a library of functions which call this function, so I cannot have the data processing done within the success function, I need to extract the data itself.
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Apr 6, 2010
I am trying to develop a iGoogle-like dashboard that uses JSONP to get the content of each widget from other (trusted) sites.Each widget is a div that will take care of getting its content using $.ajax() and use the callback to update the div with the html content returned with JSONP.The problem I have happens only in Firefox (I'm using 3.6.3):when a site is unavailable or takes longer to return the JSONP content for a widget, it seems that the callback for the other widget does not get executed. All the widgets stay in the "loading" state although I'm sure they have all received the answer.What's puzzling is that if I hit the "stop" button of Firefox, the content of the other widgets get displayed (ie. their displaying callbacks get executed).
If the calls are asynchronous, what prevents Firefox from executing the callbacks for the other widgets once the response is received?Do you have any idea of what's happening and if there's some way around this?
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Jun 27, 2011
I have some jQuery making ajax requests that works just fine if the server returns a 200 but whenever it returns any error HTTP status none of the events fire. It's happening on more than one request to different servers but I'll just include one example for now:
var ajaxResponse = $.ajax({
url: widget.serviceURL + 'customer/createAjax?'+$('#ndBookingFormStep1').serialize(),
dataType: 'jsonp',
success: function(data, textStatus, jqXHR){
console.log(data);
if( data.status != 'OK'){
widget.message(data.status);
} else {
console.log(data);
}}})
.error(function(jqXHR, textStatus, errorThrown){
console.log(jqXHR);
}).complete(function(jqXHR, textStatus){
console.log(jqXHR);
});
console.log(ajaxResponse);
console.log(ajaxResponse.responseText );
The request gets made just fine, I can see the response in the net console in firebug and it returns the data I want with a 500 when I do not complete the form correctly. However, it does not fire either the error or the complete function when I get this status, and the ajaxResponse.responseText is undefined when it is logged to the screen. When the form is completed and the request is successfull the success function fires just fine.
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Oct 1, 2009
I'm tryng to develop a link tracker, something like google analytics. The goal is to get a command like this:
$('html').trackAllLinks(optional options);
$('a').trackAllLinks(optional options);
Now i developed a javascript that could do just what i need but the problem is it doesn't work in every browser as it should be. Because i want to track a link click i need to make a request to my server to say that the link has been clicked. The first problem i had was that i needed to make a cross domain ajax call. But this is fixed by using JSONP. Now my code looks like this:
[Code]...
The first idea was that i wouldn't do anything in the success of the jsonp call and just let the request go, but because this didn't work when i clicked on an external link, i changed it to wait on a response before opening the link. The problem with this code is that it doesn't work in Opera, no request is being send to the server Now i know that JSONP mimics the ajax call by adding a script tag to the page which loads the script of the given url. Now i think when i do this in Opera the dynamically loaded javascript isn't executed. In Firefox, IE, Chrome, Safari it works but not in Opera.
Another idea i had was by dynamicly adding an image to the page. But this has the same problem in Opera and i was unable to track an external link in Safari and Chrome (Webkit.
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Apr 21, 2010
So I have a function that is going to get a URL, and have to retrieve json data from that URL. The URL _might_ be same-domain, and might be cross-domain. If it's cross-domain, of course I want to do jsonp complete with the script-tag-to-load and such, but if it's same domain of course I want to do just xhr for efficiency. So I _could_ write all my own logic for this. Write logic to see if the url is cross-domain or not, and then make entirely different $.ajax() calls depending.
(I think I need to use $.ajax() rather than $.getJSON() because I need a callback on failure, not just success). If it is cross-domain, use dataType:jsonp, and make sure to supply a &callback. If it's not cross-domain, dataType:json, and don't even bother supplying a callback. But I'm having trouble figuring out if this is true, or how. What's the easiest way to get $.ajax() to make a dataType:json request if it's same-domain, but a dataType:jsonp request if it's cross-domain?
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Jul 14, 2010
THIS WORKS:
<html><head><script type="text/javascript">
function recalc() {
alert ('Entering recalc().');
}
[Code]....
The first example works, which shows that the recalc function can be called. The second example works, which shows that onchange will trigger an alert box. BUT, the third example doesn't work. Why can't I trigger a call to the recalc function from the onchange event?
The above 3 code postings are the entire programs. Nothing has been left out or modified.
I am using IE 8.0.6001.18702.
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Jun 7, 2010
I have a set of select fields, which when selected, send a value via ajax, to return a sub-selection for further choice. I have 3 levels of sub-categories like this.
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Mar 16, 2011
I wrote the following code with Dreamweaver:
If I run it in Dreamweaver It works and the alert success is raised, but If I run this code into Safari or Chrome the Error alert is always raised.
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May 10, 2011
My goal is to get some HTML content including some UI widgets and other stuff via an ajax call. To clarify my goal and the strange behavior, I attached some HTML files, that you can run for yourself. Open the index.html will show you some UI widgets, which are pulled from the ajax.html via ajax. When you scroll to the bottom you can see the same content inserted a second time. But this time, the widgets are not "rendered". It looks if the "button()" calls etc. are not executed.
The only difference is the way I insert the result of the ajax call. The first time I insert the hole content received by the ajax call, the second time I only insert the content of a special div. The goal in this is to get various chunks of content with one ajax request and replace "div#one" and "div#two" with different parts of my site. Which is not working. Is it generally okay to receive html content which has some script parts to be executed via ajax and what is wrong with my second approach?
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Aug 9, 2009
I'm currently using the dialog functionality (modal form) from UI library to submit data to the database. All the validation checks have been running ok until one of the validation checks requires a ajax call to check if a username exist in the database. I'm fairly new to both javascript and jquery so this could be a fairly basic blunder. Initially, i thought it was an synchronicity problem, but I changed the $.ajax async option to true but still no joy, so maybe it something to do with scope etc?
Here's the code:
function checkIfUsername(){
$.ajax({
type: "POST",
url: ""+CI_ROOT+"index.php/admin/check_if_username",
data: ({username: username.val()}),
async: false,
dataType: "json",
success: function(data){
returnUsernameBool(username, data);
}});
}function returnUsernameBool(o, data){
if(data.bool == true){
o.addClass('ui-state-error');
updateTips("Your username must be unique");
alert('false'); //this works
return false; //still can't return bool
}else{
alert('true'); //this works
return true; //still can't return bool
}}
bValid = bValid && checkIfUsername(username);
alert(bValid); //still gives undefined
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Sep 6, 2009
I am trying to set an html attribute after an AJAX call. Works great on the initial tab I can't get it to work on the rest [code]...
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Jan 25, 2011
Is it possible to get a return value from a page call within an ajax call? For example,
$("#new_request").click(function(e){
$.ajax({
url:"_insert_new_request.php",
type:"GET",
[Code]....
Here I make an ajax call from a click on a div. I then call "_insert_new_request.php" page, with a param of "partner_id_link".
Can I return a value from the "_insert_new_request.php"? and how?
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