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POHTTP OPTIONS request on Azure Websites fails due to CORS
 

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    <p>I've recently moved our servers from Rackspace CloudSites (running on Apache/Linux) to Windows Azure Websites. Since the migration, all the jQuery AJAX requests on our REST API have started failing due to CORS.</p> <p>We use custom headers, so jQuery makes a Pre-flight HTTP OPTIONS request before running the actual API calls. The problem is that the OPTIONS request doesn't seem to reach my PHP code and is instead returned by some other entity (obviously the Web Server) which I seem to have no control over.</p> <p>I have been using the following headers for a couple of years now so I'm pretty sure the problem isn't in the PHP code:</p> <pre><code>&lt;?php $this-&gt;output-&gt;set_header("Access-Control-Allow-Origin: *"); $this-&gt;output-&gt;set_header("Access-Control-Allow-Methods: GET,POST,DELETE,HEAD,PUT,OPTIONS"); $this-&gt;output-&gt;set_header("Access-Control-Allow-Headers: X-Olaround-Debug-Mode, Authorization, Accept"); $this-&gt;output-&gt;set_header("Access-Control-Expose-Headers: X-Olaround-Debug-Mode, X-Olaround-Request-Start-Timestamp, X-Olaround-Request-End-Timestamp, X-Olaround-Request-Time, X-Olaround-Request-Method, X-Olaround-Request-Result, X-Olaround-Request-Endpoint" ); ?&gt; </code></pre> <p>I'm guessing the problem is specific to Azure Websites since the code seems to working fine on my development machine (Windows 8 / IIS 8.0) as well. I'm new to Azure (and Windows based hosting in general) so I have almost no clue on how to approach and debug this issue since Azure Websites allow very minimal control.</p>
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    1. USUzair Sajid
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    1. COIs the OPTIONS request being returned with a 405 status code?
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      1. USRay Nicholus
    2. CO@RayNicholus I actually get an HTTP 404 Not Found with the following response message in the Networks tab of Chrome's developer console: "No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://olman-dev.azurewebsites.net' is therefore not allowed access."
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