JQuery :: IE Does Not Properly Handle Multiple Ajax Requests
May 11, 2011
I have a page that relies on AJAX for content manipulation. Once a person selects a radio button, a request is made through $.getJSON() to get the replacement content. This works in all browsers. Once the new content is loaded, there are 3 more calls to $.getJSON() to change more content (on other tabs in jQuery UI). This works in all browsers except for IE.
I understand this is a Microsoft problem, and not a jQuery problem, but I am wondering if there is a way to manipulate the jQuery calls to get them to work in IE. I did try replacing $.getJSON with $.ajax, and even set async to false. None of those three methods worked in IE. I noticed the problem when my loading div was still displayed in IE. Using Firebug Lite, I saw that only one request was made, rather than four.
This might seem like a silly question..First issue. If i have a response and i'd like to update both text div and a status div how would i go about doing this. I've seen that jQuery has a few options such as OnSuccess etc?
Say that i post a comment and obviously you'd want to update some kinda statusbar on your website with the info that the message was posted successfully with ajax. (otherwise it might slip by the user unnoticed since ajax is kinda discrete)
Would it be a good way to for instance check the responseText if it contains anything and if it does you simply write a successmessage by grabbing a div from JS and if the responseText contains a custom error code lets say 1 you'll update the statusbar with a deny message?
Second thing. I've currently created an Ajax search on my site which activates whenever the user press or unleash the button. The issue is that if the user types fast enough it comes stuck showing the Loading.gif constantly. Could this be due so many requests opening and that i have a sleep on the server-side and if so how would you do it instead? I am using a serversleep of 1 second to have the Ajax pic appear consistently.
I have a jsp page using ajax that has a button with an action. The action sends multiple ajax requests. The response from these requests is to be used to update a progress indicator to show the servers current progress. I can see from the debug that I am getting the 1st response. I think it is the way how I have implemented the further requests. I think this is down to my javascript knowledge, which isnt very much. Also I assume using multiple requests in this way is the correct thing to do? I have spent ages trawling the internet trying to get a solution.
I have a problem where if a form submission (set up to submit via AJAX) fails validation, the next time the form is submitted, it doubles the number of post requests - which is definitely not what I want to happen. I'm using the jQuery ValidationEngine plugin to submit forms and bind validation messages to my fields. This is my code below. I think my problem is that I need to unbind from the validationEngine plugin when the form fails, but I can't figure out how to do this.
I'm encountering an AJAX problem when I try to execute multiple AJAX requests at the same time. What I want to do is delete a message and display the status (succes or failure) of that in div1, and refresh the messages on the page in div2. This needs (for as far as my knowledge reaches) two AJAX actions from which I both need the responseText.
The problem: What happens when I execute my script is that the second action (refresh a part of the page) happens before the deletion is executed. The result of this is that when the deletion has been executed, the page is already updated, and the deleted message is still there.
The script What I now have is: function doAjax(url, element_id, img_url){ var ajaxObject = createAjaxObject(); ajaxObject.open('GET', url, true); ajaxObject.onreadystatechange = function(){ if(ajaxObject.readyState==4 && ajaxObject.status==200){ document.getElementById(element_id).innerHTML = ajaxObject.responseText; delete ajaxObject; .....
I need to send 15 requests to my server and get results, these results are queries to other sites. I then update my page with the results. I need to know if I am taking the correct approach, as things are working a bit slow, and i.e., seems the be as slow as a snail.
Here is my function for the first request Code: function one(){ var xmlHttpa=null; try{ xmlHttpa=new XMLHttpRequest(); } catch (e){ try { xmlHttpa=new ActiveXObject("Msxml2.XMLHTTP"); } catch (e){ try { xmlHttpa=new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { alert("Your browser does not support AJAX!"); return false; }}}
xmlHttpa.onreadystatechange=function(){ if(xmlHttpa.readyState==4){ document.getElementById('resulta').innerHTML = xmlHttpa.responseText; var el = document.getElementById('showMessagea'); el.parentNode.removeChild(el); applystyle(); }} xmlHttpa.open("GET","one.php",true); xmlHttpa.send(null); }
I then call this function and others from my page, one(); two(); etc. Am I correct in my approach?
It looks like IE is caching the response for some AJAX requests here. The app I'm working on is a catalog of sorts. Clicking the link for a category loads a set of "items". Those, in turn, may be deleted from the admin view. The delete works fine (I checked the DB) but, when loading the same set of category items, I'm seeing the list unchanged. That is, the thing that was deleted is still there. Sorry for the crap explanation but I'm not really sure of a better way of putting it. Bottom line is, has anyone seen this sort of behavior with IE before? Can it cache the result of an AJAX request like that? And, if so, how can I guard against that? Can I set cache-control headers for an AJAX request?
Very intermittently, I am finding ajax requests submitted with jquery are being submitted twice, once with parameters, and once without parameters. The code looks something like this:
I'm trying to launch two ajax requests at same time. I'm expecting result from the first later than the second. The problem is, it won't return me any result from the second request untill first one is returned.
I'm getting response from the $.getJSON function only when the $.post is over. Is this a bug or a mistake from me ? My aim is to launch a long request and fire multiple other requests to check how is doing the first one.
I have a form with 12 fields. This form submits the information for registering a student for courses that we offer. Currently, it only handles one registration at a time and is kind of clunky.I want to present the user the capability to register more than one person at a time. Essentially adding multiple users' info at once before submitting the form.I also want to have an area above the form that shows a list of people that they enter in a select,which will later be modified to have checkboxes so they may remove them, if needed.
I'm having problems performing a simple load(...) request to bring in HTML content from a partner Oracle system within the same domain. Our portal has a built-in SO connection will handles security for me transparently. However during the process it initiates a 302 temporarily moved response which seems to trip up an AJAX request, but doesn't trip up Firefox when accessed through the address bar. If I use the same URL in an IFRAME it's totally fine.
After tons of googling, searching the forums, and the bug tracker database I cannot find anyone who has experienced this problem. Before I open a bug ticket I'd like community feedback to help me see if I am doing anything wrong.
I have a element when click, it will trigger some other elements to be selected. and those elements will trigger elements in next level.
It is a three levels hierarchy so to speak. but each element will send an ajax request when selected. Those requests will become out of control especially when I repeatedly click the root element.
Can I queue those XHR request in a queue and send them one by one? or maybe add a delay before send so that they can collect their information into one batch request and send one request after that.
I am developing a fairly complicated application with a lot of JavaScript and making use of JQuery. The application repeatedly makes simultaneous GET requests.
I am looking for a way of assigning a unique token to each request when it is made, so that I can store information about that request and cache the request / response combo, when using $.get() (or potentially $.ajax() if required for the extra functionality).
So far I have not had any joy and after a while googling this am none the wiser. I have used similar functionality in Flex 3 with the AsyncToken object which can maintain data between HTTP request / response.
I'm working on a php/jQuery application, I want to display a loading image automatically every ajax request, without writing code for every ajax request. Is there anyway to do this.
I see it working in the demos I found this documentation
You can avoid having to duplicate the plugin settings by modifying the defaults. Use $.validator.setDefaults({…}) to override multiple settings at once.
But I do not understand what I have to do to make this work
When a pending ajax request is aborted in IE browsers there is a new global object called "jQuery" + timestamp, for example "jQuery16405272192696596443".
This happens in every IE from 6 to 9 but not in Chrome, Safari, FireFox in their current stable versions. I am a bit lost and found nothing similar. I created a little test page to determine whether it started due to some own code or just in this little piece.
I'm using AIR to write an application that is mostly javascript (I am using jquery for quite a lot of it). The program has to be able to download multiple HTML pages (like a RSS feed reader might) and take a specific action when the download is complete, depending on which page has just downloaded. I'm using air.URLLoader with an eventlistener to notify when the page download is complete. The problem I have is that I want to run through a database table of around 20-30 URLs and dynamically create URLLoaders for each.I've spent hours searching Google and looking for ways to overload the event listener, add a property to the URLLoader object etc but all to no avail.
The code above will load whatever pages it is told to, but the problem I have is that it needs to take different actions depending on which page is loading. Each page in the database table has an ID field and I need to somehow identify the ID of the page within the notifyURLComplete function, hence the reason I'd like to pass the page ID into the event listener (apparently not possible) or add an additional property to the URLLoader object.Another possibility was a custom event handler, but I'm not sure how/where this would be done in my code.
I have an web application (PHP backend) where I want to initiate multiple requests to the same server (to different php functions/files) and asynchronously update the response on the page (the call back function is same for all the requests).
What is the best solution for this ? Is it better to
a) call multiple server calls from the java script file? if so Do we create multiple http objects ? can someone point me to the few examples ?
b) call one Php service and have the php fork the multiple requests on the server side. I am not sure if this can be done multiple requests be done asynchronously on the server side ? and if so how to dynamically update teh resultant page as each request finishes?
I have this function among many that houses forms. I'm also using an ajax page that is supposed to deal with form's entries and insert everything into my DB and I don't know how to separate the different requests on the ajax page so that it can do what the correct request is.
I was on HTMLDrive.net looking for some cool effects for my site, and when I tried to put two of them in a page together it would not work properly. I can get only one to work at a time. It seems that they somehow interfere with each other, but I don't know how. Now have a little experience with JavaScript and jquery, but nothing I tried would work. Here is what I have in my page header right now:
[Code]...
The first one is an accordion navigation panel and it comes with a JavaScript file to link to in the header. Other than that there is no more JavaScript involved with it. Here is the link to it: Accordion Navigation The other one is a image slide show that uses jquery. it has the jquery script, a script file of it own, and some JavaScript right in the page header. Here is the link to this one:
I am working on connecting a web application to a folder of photos that has some photos named with their "master" attribute (e.g. folder/master.JPG) and others named with their "name" attribute. I can't change the name of these photos.
I want to be able to check first the "master" attribute, then the "name" attribute, and then display a "no photo available" image if trying both attributes resulted in an error. However, I'm not sure why I can't get to the "no photo available" part.
Here's what I am trying (hopefully the other parts of the code are self-explanatory):
Code: function selectionEvent() { var link = PHOTO_PATH + masterSelected + ".JPG"; document.getElementById('Image').onError = masterError;
[Code]....
The first two functions work fine (photos can be looked up by "master" and "name" names), but selecting a record with no photo results in what I think is an infinite loop. I don't understand why the second function can't get to the third function in case of an error? Do I need to somehow clear the first error first? Or is it something else entirely?
Have an issue handling people using texterea to submit multiple id strings, I have to handle that not make what the user enters as delimiter, I have to pass it to comma delimiter to the back end. Basically I need to treat, ;, newline, returns, space, white space, blank etc to comma. Just wondering if there is an expression I can use.
str = document.mform.txtInput.value function handleInput(str) { //remove unwanted space,change all delimiler to comma }
I am not new to jqueyr or to programming. I currently keep having problems when using ajax jquery for forms.
here is what I am doing. I have jquery fade in a div and in that div I use ajax to inject html code mainly a form inside this div. When I click the submit button. The form acts like it got processeed but dosen't So it like submits nothing that is only if I use jquery to submit the form. If I use the html old way it works fine but gives me a white blank page when it get processed and I would have to type in the page in the web browser url box to get back to the main page again where I was.
So my question is about ajax and jquery. How do you guys use ajax forms properly without getting errors? I like to make one php file and cram many stuff like the form code and also the processing of the form. I just make sure I got conditions so variables passed to the file will run the right code whennecessary.
So what I would like to know how do you guys setup your ajax forms so there is no errors or problems.
Mine dosen't spit out any errors. Yet I do know the data isn't being submitted yet it acts like it did.
but there is still problem i faced that i want only headlines not whole page i think it can be get by open popwindow or else any one can tell me how to handle mapping if i want to show only one in javascipt.
I've got a problem on a site using AJAX navigation where when you first request a page, parts of the script haven't been executed, but if you visit again, it's fine. Is there a common pitfall causing this problem?
