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Tag: ajax

Jquery ajax returning 404 not found

I’m using Ajax to pass my form data and files to a PHP file for processing. Javascript: ValidateApplication.php definitely exists. I can view it if I type in the address into the web browser, however when I submit the form chrome console returns 404. The PHP is in the same folder as the HTML page the JavaScript is running on

Check url content type with javascript

In order to conserve server resources I’m looking for a way to retrieve the content type of a given url using javascript. It should not download the complete content from the url only the headers. Is this possible with the restrictions javascript has. Answer Make an Ajax call with a head request.

Jquery/ajax Looping SetTimeout

Hi I’m stuck on my setTimeout function. What i’m trying to do is to loop my setTimeout for my retrieve conversation function.. I have tried this on setInterval but using setInterval is a badnews for my application which is why I switch to setTimeout.. But I cant seem to figure out how to make the setTimeout work again after its

FormData is empty when using jQuery ajax()

I try to submit form with file with jQuery.ajax. Google says I should use FormData which will automagically encode the file and all inputs into the one object which I can send via XHR. Well, the FormData object is empty. It’s empty in the debugger and on the server side. I can’t find the error. Here is the code. The

My displayError() function is not working at all

I made a function that should display an error or remove an error. Unfortunately, when I use the function in any way, for example like displayError(true, “test”);, it’s not working. When I check my html code to see if anything changes, nothing is changed. Anybody who can identify the problems? Answer I found out about the console log method. So

What’s to stop malicious code from spoofing the “Origin” header to exploit CORS?

The way I understand it, if a client-side script running on a page from foo.com wants to request data from bar.com, in the request it must specify the header Origin: http://foo.com, and bar must respond with Access-Control-Allow-Origin: http://foo.com. What is there to stop malicious code from the site roh.com from simply spoofing the header Origin: http://foo.com to request pages from

Abort new AJAX request before completing the previous one

I have a function that runs an AJAX call on the change of an input. But, there is a chance that the function will be fired again before the previous ajax call has completed. My question is, how would I abort the previous AJAX call before starting a new one? Without using a global variable. (See answer to a similar

OnClick Send To Ajax

I’m trying to complete some ajax requests to insert a textarea into a database without refresh. Here is my code: HTML: JS: My Questions: 1) How do I send the contents of the text area into the onclick function? 2) How do I escape/urlencode etc.. So it retains line breaks Answer You have few problems with your code like using

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