'Jquery ajax returning 404 not found

I'm using Ajax to pass my form data and files to a PHP file for processing.

Javascript:

$("form#applyform").submit(function(){

var data = new FormData();
jQuery.each($('#file')[0].files, function(i, file) {
    data.append('file-'+i, file);
});

$.ajax({
    url: 'ValidateApplication.php',
    data: data,
    cache: false,
    contentType: false,
    processData: false,
    type: 'POST',
    success: function(data){
        alert(data);
    }
});

}

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 so I am confused as to why I keep getting a 404.

UPDATE

Changing POST to GET gets rid of the 404 error, but returns a 500 Internal Server Error

UPDATE 2

Changing the action of the form to ="ValidateApplication.php" and submitting it as normal (without AJAX) leads to the correct file without any errors.

javascriptphpjqueryajax


Solution 1:[1]

I've had the same issue and after 2 hours looking for what was causing the 404 Not Found error I found that I was recently playing with the header() from PHP and had forgotten to delete the following line of code: 

header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");

After deleting it, my Ajax functions became normal again.

Solution 2:[2]

For me, it was that I used an input field with name="name" which made the called page return a 404. Weird stuff, hope this helps someone.

Solution 3:[3]

Try adding a / before the filename: url: '/ValidateApplication.php',

Try changing the request type from POST to GET and see if it works.

Try commenting out parts of the code:

/*cache: false,
contentType: false,
processData: false,*/

Try another browser.

Solution 4:[4]

Please validate you have provided name="" attribute properly in the form Form submit validate all bean attribute from name attribute of the input

Solution 5:[5]

Please check your PHP page name!

Do not use page-ajax.php, but instead use page_ajax.php.

Solution 6:[6]

Based on my case, I'd be sure to recheck your url address.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 CIRCLE
Solution 2 NightOwl888
Solution 3 Greg K
Solution 4 Shahid Hussain Abbasi
Solution 5 Mark Rotteveel
Solution 6 Jason Caleb

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