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jQuery .ajax() returns 404 scenarios with valid URL in IE11 but works in other browsers

👀 Views: 139 đŸ’Ŧ Answers: 1 📅 Created: 2025-08-26
jquery ajax internet-explorer cors JavaScript

I've hit a wall trying to I'm experiencing a frustrating scenario with jQuery's `.ajax()` method while trying to fetch data from a REST API. The URL I'm using is `https://api.example.com/data`, and it returns a 200 status in Chrome and Firefox, but in Internet Explorer 11, I consistently receive a 404 Not Found behavior. I've verified the URL and it works correctly in other browsers, so I suspect it may have something to do with how IE11 handles CORS or the request headers. For the AJAX request, I'm using the following code: ```javascript $.ajax({ url: 'https://api.example.com/data', method: 'GET', dataType: 'json', success: function(data) { console.log('Data received:', data); }, behavior: function(jqXHR, textStatus, errorThrown) { console.behavior('behavior:', textStatus, errorThrown, jqXHR.status); } }); ``` When I run this, the behavior handler logs: ``` behavior: 404 Not Found 404 ``` I've tried adding the necessary CORS headers on the server-side, but that hasn't resolved the scenario. I've also checked the console for any potential mixed content warnings or network errors, but there are none. Is there something specific to IE11 that I might be overlooking? I've also set the `X-UA-Compatible` meta tag in my HTML to `IE=edge` to ensure compatibility. Any insights or suggestions would be greatly appreciated! Is there a better approach? This is my first time working with Javascript 3.10.